Home / 22,581.86-31,160.41-12,507.75

Finding the Fourth Proportional to 22,581.86, 31,160.41 and 12,507.75

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Solution

The fourth proportional to 22,581.86, 31,160.41 and 12,507.75 is: 17,259.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,581.86 : 31,160.41 = 12,507.75 : x
  2. Step 2: Convert to fraction form
    22,581.86/31,160.41 = 12,507.75/x
  3. Step 3: Cross multiply
    22,581.86x = 31,160.41 × 12,507.75
  4. Step 4: Simplify right side
    22,581.86x = 389,746,586.91
  5. Step 5: Solve for x
    x = 389,746,586.91/22,581.86
  6. Step 6: Final answer
    x = 17,259.28

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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.