Home / 39,939.18-59,915.10-13,286.16

Finding the Fourth Proportional to 39,939.18, 59,915.10 and 13,286.16

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Solution

The fourth proportional to 39,939.18, 59,915.10 and 13,286.16 is: 19,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,939.18 : 59,915.10 = 13,286.16 : x
  2. Step 2: Convert to fraction form
    39,939.18/59,915.10 = 13,286.16/x
  3. Step 3: Cross multiply
    39,939.18x = 59,915.10 × 13,286.16
  4. Step 4: Simplify right side
    39,939.18x = 796,041,605.02
  5. Step 5: Solve for x
    x = 796,041,605.02/39,939.18
  6. Step 6: Final answer
    x = 19,931.35

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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.