Home / 22,592.90-31,159.79-15,900.70

Finding the Fourth Proportional to 22,592.90, 31,159.79 and 15,900.70

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Solution

The fourth proportional to 22,592.90, 31,159.79 and 15,900.70 is: 21,930.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,592.90 : 31,159.79 = 15,900.70 : x
  2. Step 2: Convert to fraction form
    22,592.90/31,159.79 = 15,900.70/x
  3. Step 3: Cross multiply
    22,592.90x = 31,159.79 × 15,900.70
  4. Step 4: Simplify right side
    22,592.90x = 495,462,472.85
  5. Step 5: Solve for x
    x = 495,462,472.85/22,592.90
  6. Step 6: Final answer
    x = 21,930.01

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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.