Home / 39,779.57-59,669.49-13,502.90

Finding the Fourth Proportional to 39,779.57, 59,669.49 and 13,502.90

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Solution

The fourth proportional to 39,779.57, 59,669.49 and 13,502.90 is: 20,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,779.57 : 59,669.49 = 13,502.90 : x
  2. Step 2: Convert to fraction form
    39,779.57/59,669.49 = 13,502.90/x
  3. Step 3: Cross multiply
    39,779.57x = 59,669.49 × 13,502.90
  4. Step 4: Simplify right side
    39,779.57x = 805,711,156.52
  5. Step 5: Solve for x
    x = 805,711,156.52/39,779.57
  6. Step 6: Final answer
    x = 20,254.40

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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.