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Finding the Fourth Proportional to 19,937.98, 29,880.87 and 10,071.91

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Solution

The fourth proportional to 19,937.98, 29,880.87 and 10,071.91 is: 15,094.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.98 : 29,880.87 = 10,071.91 : x
  2. Step 2: Convert to fraction form
    19,937.98/29,880.87 = 10,071.91/x
  3. Step 3: Cross multiply
    19,937.98x = 29,880.87 × 10,071.91
  4. Step 4: Simplify right side
    19,937.98x = 300,957,433.36
  5. Step 5: Solve for x
    x = 300,957,433.36/19,937.98
  6. Step 6: Final answer
    x = 15,094.68

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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.