Home / 30,549.64-42,154.80-17,117.83

Finding the Fourth Proportional to 30,549.64, 42,154.80 and 17,117.83

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Solution

The fourth proportional to 30,549.64, 42,154.80 and 17,117.83 is: 23,620.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,549.64 : 42,154.80 = 17,117.83 : x
  2. Step 2: Convert to fraction form
    30,549.64/42,154.80 = 17,117.83/x
  3. Step 3: Cross multiply
    30,549.64x = 42,154.80 × 17,117.83
  4. Step 4: Simplify right side
    30,549.64x = 721,598,700.08
  5. Step 5: Solve for x
    x = 721,598,700.08/30,549.64
  6. Step 6: Final answer
    x = 23,620.53

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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.