Home / 19,943.40-29,915.10-13,333.80

Finding the Fourth Proportional to 19,943.40, 29,915.10 and 13,333.80

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Solution

The fourth proportional to 19,943.40, 29,915.10 and 13,333.80 is: 20,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.40 : 29,915.10 = 13,333.80 : x
  2. Step 2: Convert to fraction form
    19,943.40/29,915.10 = 13,333.80/x
  3. Step 3: Cross multiply
    19,943.40x = 29,915.10 × 13,333.80
  4. Step 4: Simplify right side
    19,943.40x = 398,881,960.38
  5. Step 5: Solve for x
    x = 398,881,960.38/19,943.40
  6. Step 6: Final answer
    x = 20,000.70

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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.