Home / 22,835.28-31,513.25-12,765.40

Finding the Fourth Proportional to 22,835.28, 31,513.25 and 12,765.40

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Solution

The fourth proportional to 22,835.28, 31,513.25 and 12,765.40 is: 17,616.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,835.28 : 31,513.25 = 12,765.40 : x
  2. Step 2: Convert to fraction form
    22,835.28/31,513.25 = 12,765.40/x
  3. Step 3: Cross multiply
    22,835.28x = 31,513.25 × 12,765.40
  4. Step 4: Simplify right side
    22,835.28x = 402,279,194.68
  5. Step 5: Solve for x
    x = 402,279,194.68/22,835.28
  6. Step 6: Final answer
    x = 17,616.57

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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.