Home / 27,157.56-37,472.67-15,221.40

Finding the Fourth Proportional to 27,157.56, 37,472.67 and 15,221.40

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Solution

The fourth proportional to 27,157.56, 37,472.67 and 15,221.40 is: 21,002.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,157.56 : 37,472.67 = 15,221.40 : x
  2. Step 2: Convert to fraction form
    27,157.56/37,472.67 = 15,221.40/x
  3. Step 3: Cross multiply
    27,157.56x = 37,472.67 × 15,221.40
  4. Step 4: Simplify right side
    27,157.56x = 570,386,499.14
  5. Step 5: Solve for x
    x = 570,386,499.14/27,157.56
  6. Step 6: Final answer
    x = 21,002.86

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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.