Home / 22,487.92-31,031.58-13,057.18

Finding the Fourth Proportional to 22,487.92, 31,031.58 and 13,057.18

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Solution

The fourth proportional to 22,487.92, 31,031.58 and 13,057.18 is: 18,017.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,487.92 : 31,031.58 = 13,057.18 : x
  2. Step 2: Convert to fraction form
    22,487.92/31,031.58 = 13,057.18/x
  3. Step 3: Cross multiply
    22,487.92x = 31,031.58 × 13,057.18
  4. Step 4: Simplify right side
    22,487.92x = 405,184,925.74
  5. Step 5: Solve for x
    x = 405,184,925.74/22,487.92
  6. Step 6: Final answer
    x = 18,017.89

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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.