Home / 37,487.18-51,730.78-21,572.20

Finding the Fourth Proportional to 37,487.18, 51,730.78 and 21,572.20

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Solution

The fourth proportional to 37,487.18, 51,730.78 and 21,572.20 is: 29,768.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,487.18 : 51,730.78 = 21,572.20 : x
  2. Step 2: Convert to fraction form
    37,487.18/51,730.78 = 21,572.20/x
  3. Step 3: Cross multiply
    37,487.18x = 51,730.78 × 21,572.20
  4. Step 4: Simplify right side
    37,487.18x = 1,115,946,732.32
  5. Step 5: Solve for x
    x = 1,115,946,732.32/37,487.18
  6. Step 6: Final answer
    x = 29,768.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.