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Finding the Fourth Proportional to 62,005.80, 93,008.70 and 20,447.40

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Solution

The fourth proportional to 62,005.80, 93,008.70 and 20,447.40 is: 30,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,005.80 : 93,008.70 = 20,447.40 : x
  2. Step 2: Convert to fraction form
    62,005.80/93,008.70 = 20,447.40/x
  3. Step 3: Cross multiply
    62,005.80x = 93,008.70 × 20,447.40
  4. Step 4: Simplify right side
    62,005.80x = 1,901,786,092.38
  5. Step 5: Solve for x
    x = 1,901,786,092.38/62,005.80
  6. Step 6: Final answer
    x = 30,671.10

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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.