Home / 22,689.42-31,313.26-15,884.20

Finding the Fourth Proportional to 22,689.42, 31,313.26 and 15,884.20

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Solution

The fourth proportional to 22,689.42, 31,313.26 and 15,884.20 is: 21,921.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.42 : 31,313.26 = 15,884.20 : x
  2. Step 2: Convert to fraction form
    22,689.42/31,313.26 = 15,884.20/x
  3. Step 3: Cross multiply
    22,689.42x = 31,313.26 × 15,884.20
  4. Step 4: Simplify right side
    22,689.42x = 497,386,084.49
  5. Step 5: Solve for x
    x = 497,386,084.49/22,689.42
  6. Step 6: Final answer
    x = 21,921.50

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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.