Home / 19,205.60-26,515.96-15,677.20

Finding the Fourth Proportional to 19,205.60, 26,515.96 and 15,677.20

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Solution

The fourth proportional to 19,205.60, 26,515.96 and 15,677.20 is: 21,644.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,205.60 : 26,515.96 = 15,677.20 : x
  2. Step 2: Convert to fraction form
    19,205.60/26,515.96 = 15,677.20/x
  3. Step 3: Cross multiply
    19,205.60x = 26,515.96 × 15,677.20
  4. Step 4: Simplify right side
    19,205.60x = 415,696,008.11
  5. Step 5: Solve for x
    x = 415,696,008.11/19,205.60
  6. Step 6: Final answer
    x = 21,644.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.