Home / 22,586.29-31,151.51-15,421.96

Finding the Fourth Proportional to 22,586.29, 31,151.51 and 15,421.96

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Solution

The fourth proportional to 22,586.29, 31,151.51 and 15,421.96 is: 21,270.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,586.29 : 31,151.51 = 15,421.96 : x
  2. Step 2: Convert to fraction form
    22,586.29/31,151.51 = 15,421.96/x
  3. Step 3: Cross multiply
    22,586.29x = 31,151.51 × 15,421.96
  4. Step 4: Simplify right side
    22,586.29x = 480,417,108.29
  5. Step 5: Solve for x
    x = 480,417,108.29/22,586.29
  6. Step 6: Final answer
    x = 21,270.30

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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.