Home / 27,312.51-37,691.22-15,379.70

Finding the Fourth Proportional to 27,312.51, 37,691.22 and 15,379.70

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Solution

The fourth proportional to 27,312.51, 37,691.22 and 15,379.70 is: 21,223.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,312.51 : 37,691.22 = 15,379.70 : x
  2. Step 2: Convert to fraction form
    27,312.51/37,691.22 = 15,379.70/x
  3. Step 3: Cross multiply
    27,312.51x = 37,691.22 × 15,379.70
  4. Step 4: Simplify right side
    27,312.51x = 579,679,562.01
  5. Step 5: Solve for x
    x = 579,679,562.01/27,312.51
  6. Step 6: Final answer
    x = 21,223.96

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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.