Home / 15,425.50-23,128.45-13,086.31

Finding the Fourth Proportional to 15,425.50, 23,128.45 and 13,086.31

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Solution

The fourth proportional to 15,425.50, 23,128.45 and 13,086.31 is: 19,621.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,425.50 : 23,128.45 = 13,086.31 : x
  2. Step 2: Convert to fraction form
    15,425.50/23,128.45 = 13,086.31/x
  3. Step 3: Cross multiply
    15,425.50x = 23,128.45 × 13,086.31
  4. Step 4: Simplify right side
    15,425.50x = 302,666,066.52
  5. Step 5: Solve for x
    x = 302,666,066.52/15,425.50
  6. Step 6: Final answer
    x = 19,621.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.