Home / 37,398.48-51,609-20,631.12

Finding the Fourth Proportional to 37,398.48, 51,609 and 20,631.12

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Solution

The fourth proportional to 37,398.48, 51,609 and 20,631.12 is: 28,470.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,398.48 : 51,609 = 20,631.12 : x
  2. Step 2: Convert to fraction form
    37,398.48/51,609 = 20,631.12/x
  3. Step 3: Cross multiply
    37,398.48x = 51,609 × 20,631.12
  4. Step 4: Simplify right side
    37,398.48x = 1,064,751,472.08
  5. Step 5: Solve for x
    x = 1,064,751,472.08/37,398.48
  6. Step 6: Final answer
    x = 28,470.45

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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.