Home / 20,454.30-30,681.36-5,663.07

Finding the Fourth Proportional to 20,454.30, 30,681.36 and 5,663.07

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Solution

The fourth proportional to 20,454.30, 30,681.36 and 5,663.07 is: 8,494.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.30 : 30,681.36 = 5,663.07 : x
  2. Step 2: Convert to fraction form
    20,454.30/30,681.36 = 5,663.07/x
  3. Step 3: Cross multiply
    20,454.30x = 30,681.36 × 5,663.07
  4. Step 4: Simplify right side
    20,454.30x = 173,750,689.38
  5. Step 5: Solve for x
    x = 173,750,689.38/20,454.30
  6. Step 6: Final answer
    x = 8,494.58

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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.