Home / 21,032,455.60-31,548,683.40-20,040,432.40

Finding the Fourth Proportional to 21,032,455.60, 31,548,683.40 and 20,040,432.40

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Solution

The fourth proportional to 21,032,455.60, 31,548,683.40 and 20,040,432.40 is: 30,060,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,455.60 : 31,548,683.40 = 20,040,432.40 : x
  2. Step 2: Convert to fraction form
    21,032,455.60/31,548,683.40 = 20,040,432.40/x
  3. Step 3: Cross multiply
    21,032,455.60x = 31,548,683.40 × 20,040,432.40
  4. Step 4: Simplify right side
    21,032,455.60x = 632,249,256,986,702.12
  5. Step 5: Solve for x
    x = 632,249,256,986,702.12/21,032,455.60
  6. Step 6: Final answer
    x = 30,060,648.60

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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.