Home / 23,125.52-31,913.22-12,515.15

Finding the Fourth Proportional to 23,125.52, 31,913.22 and 12,515.15

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Solution

The fourth proportional to 23,125.52, 31,913.22 and 12,515.15 is: 17,270.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,125.52 : 31,913.22 = 12,515.15 : x
  2. Step 2: Convert to fraction form
    23,125.52/31,913.22 = 12,515.15/x
  3. Step 3: Cross multiply
    23,125.52x = 31,913.22 × 12,515.15
  4. Step 4: Simplify right side
    23,125.52x = 399,398,835.27
  5. Step 5: Solve for x
    x = 399,398,835.27/23,125.52
  6. Step 6: Final answer
    x = 17,270.91

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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.