Home / 22,592.87-31,178.84-12,520.36

Finding the Fourth Proportional to 22,592.87, 31,178.84 and 12,520.36

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Solution

The fourth proportional to 22,592.87, 31,178.84 and 12,520.36 is: 17,278.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,592.87 : 31,178.84 = 12,520.36 : x
  2. Step 2: Convert to fraction form
    22,592.87/31,178.84 = 12,520.36/x
  3. Step 3: Cross multiply
    22,592.87x = 31,178.84 × 12,520.36
  4. Step 4: Simplify right side
    22,592.87x = 390,370,160.63
  5. Step 5: Solve for x
    x = 390,370,160.63/22,592.87
  6. Step 6: Final answer
    x = 17,278.47

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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.