Home / 25,614.30-38,421.45-7,146.30

Finding the Fourth Proportional to 25,614.30, 38,421.45 and 7,146.30

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Solution

The fourth proportional to 25,614.30, 38,421.45 and 7,146.30 is: 10,719.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,614.30 : 38,421.45 = 7,146.30 : x
  2. Step 2: Convert to fraction form
    25,614.30/38,421.45 = 7,146.30/x
  3. Step 3: Cross multiply
    25,614.30x = 38,421.45 × 7,146.30
  4. Step 4: Simplify right side
    25,614.30x = 274,571,208.14
  5. Step 5: Solve for x
    x = 274,571,208.14/25,614.30
  6. Step 6: Final answer
    x = 10,719.45

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Double scale
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Similar ratio
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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.