Home / 22,938.85-31,657.13-12,867.99

Finding the Fourth Proportional to 22,938.85, 31,657.13 and 12,867.99

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Solution

The fourth proportional to 22,938.85, 31,657.13 and 12,867.99 is: 17,758.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,938.85 : 31,657.13 = 12,867.99 : x
  2. Step 2: Convert to fraction form
    22,938.85/31,657.13 = 12,867.99/x
  3. Step 3: Cross multiply
    22,938.85x = 31,657.13 × 12,867.99
  4. Step 4: Simplify right side
    22,938.85x = 407,363,632.27
  5. Step 5: Solve for x
    x = 407,363,632.27/22,938.85
  6. Step 6: Final answer
    x = 17,758.68

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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.