Home / 23,125.55-31,913.27-12,515.20

Finding the Fourth Proportional to 23,125.55, 31,913.27 and 12,515.20

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Solution

The fourth proportional to 23,125.55, 31,913.27 and 12,515.20 is: 17,270.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,125.55 : 31,913.27 = 12,515.20 : x
  2. Step 2: Convert to fraction form
    23,125.55/31,913.27 = 12,515.20/x
  3. Step 3: Cross multiply
    23,125.55x = 31,913.27 × 12,515.20
  4. Step 4: Simplify right side
    23,125.55x = 399,400,908.21
  5. Step 5: Solve for x
    x = 399,400,908.21/23,125.55
  6. Step 6: Final answer
    x = 17,270.98

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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.