Home / 49,331.40-74,006.70-21,251.40

Finding the Fourth Proportional to 49,331.40, 74,006.70 and 21,251.40

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Solution

The fourth proportional to 49,331.40, 74,006.70 and 21,251.40 is: 31,881.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,331.40 : 74,006.70 = 21,251.40 : x
  2. Step 2: Convert to fraction form
    49,331.40/74,006.70 = 21,251.40/x
  3. Step 3: Cross multiply
    49,331.40x = 74,006.70 × 21,251.40
  4. Step 4: Simplify right side
    49,331.40x = 1,572,745,984.38
  5. Step 5: Solve for x
    x = 1,572,745,984.38/49,331.40
  6. Step 6: Final answer
    x = 31,881.24

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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.