Home / 20,454.23-30,681.35-5,663.16

Finding the Fourth Proportional to 20,454.23, 30,681.35 and 5,663.16

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Solution

The fourth proportional to 20,454.23, 30,681.35 and 5,663.16 is: 8,494.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.23 : 30,681.35 = 5,663.16 : x
  2. Step 2: Convert to fraction form
    20,454.23/30,681.35 = 5,663.16/x
  3. Step 3: Cross multiply
    20,454.23x = 30,681.35 × 5,663.16
  4. Step 4: Simplify right side
    20,454.23x = 173,753,394.07
  5. Step 5: Solve for x
    x = 173,753,394.07/20,454.23
  6. Step 6: Final answer
    x = 8,494.74

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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.