Home / 18,935.34-28,407.17-5,607.30

Finding the Fourth Proportional to 18,935.34, 28,407.17 and 5,607.30

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Solution

The fourth proportional to 18,935.34, 28,407.17 and 5,607.30 is: 8,412.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.34 : 28,407.17 = 5,607.30 : x
  2. Step 2: Convert to fraction form
    18,935.34/28,407.17 = 5,607.30/x
  3. Step 3: Cross multiply
    18,935.34x = 28,407.17 × 5,607.30
  4. Step 4: Simplify right side
    18,935.34x = 159,287,524.34
  5. Step 5: Solve for x
    x = 159,287,524.34/18,935.34
  6. Step 6: Final answer
    x = 8,412.18

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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.