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Finding the Fourth Proportional to 47,347.71, 71,030.12 and 13,612.10

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Solution

The fourth proportional to 47,347.71, 71,030.12 and 13,612.10 is: 20,420.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,347.71 : 71,030.12 = 13,612.10 : x
  2. Step 2: Convert to fraction form
    47,347.71/71,030.12 = 13,612.10/x
  3. Step 3: Cross multiply
    47,347.71x = 71,030.12 × 13,612.10
  4. Step 4: Simplify right side
    47,347.71x = 966,869,072.79
  5. Step 5: Solve for x
    x = 966,869,072.79/47,347.71
  6. Step 6: Final answer
    x = 20,420.61

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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.