Home / 23,125.90-31,913.84-12,515.54

Finding the Fourth Proportional to 23,125.90, 31,913.84 and 12,515.54

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Solution

The fourth proportional to 23,125.90, 31,913.84 and 12,515.54 is: 17,271.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,125.90 : 31,913.84 = 12,515.54 : x
  2. Step 2: Convert to fraction form
    23,125.90/31,913.84 = 12,515.54/x
  3. Step 3: Cross multiply
    23,125.90x = 31,913.84 × 12,515.54
  4. Step 4: Simplify right side
    23,125.90x = 399,418,812.79
  5. Step 5: Solve for x
    x = 399,418,812.79/23,125.90
  6. Step 6: Final answer
    x = 17,271.49

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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.