Home / 21,032,451.60-31,548,677.40-20,040,428.40

Finding the Fourth Proportional to 21,032,451.60, 31,548,677.40 and 20,040,428.40

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Solution

The fourth proportional to 21,032,451.60, 31,548,677.40 and 20,040,428.40 is: 30,060,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,451.60 : 31,548,677.40 = 20,040,428.40 : x
  2. Step 2: Convert to fraction form
    21,032,451.60/31,548,677.40 = 20,040,428.40/x
  3. Step 3: Cross multiply
    21,032,451.60x = 31,548,677.40 × 20,040,428.40
  4. Step 4: Simplify right side
    21,032,451.60x = 632,249,010,549,398.12
  5. Step 5: Solve for x
    x = 632,249,010,549,398.12/21,032,451.60
  6. Step 6: Final answer
    x = 30,060,642.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.