Home / 22,586.43-31,168.36-12,515.30

Finding the Fourth Proportional to 22,586.43, 31,168.36 and 12,515.30

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Solution

The fourth proportional to 22,586.43, 31,168.36 and 12,515.30 is: 17,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,586.43 : 31,168.36 = 12,515.30 : x
  2. Step 2: Convert to fraction form
    22,586.43/31,168.36 = 12,515.30/x
  3. Step 3: Cross multiply
    22,586.43x = 31,168.36 × 12,515.30
  4. Step 4: Simplify right side
    22,586.43x = 390,081,352.59
  5. Step 5: Solve for x
    x = 390,081,352.59/22,586.43
  6. Step 6: Final answer
    x = 17,270.60

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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.