Home / 30,548.70-42,158.86-17,124.28

Finding the Fourth Proportional to 30,548.70, 42,158.86 and 17,124.28

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Solution

The fourth proportional to 30,548.70, 42,158.86 and 17,124.28 is: 23,632.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,548.70 : 42,158.86 = 17,124.28 : x
  2. Step 2: Convert to fraction form
    30,548.70/42,158.86 = 17,124.28/x
  3. Step 3: Cross multiply
    30,548.70x = 42,158.86 × 17,124.28
  4. Step 4: Simplify right side
    30,548.70x = 721,940,123.12
  5. Step 5: Solve for x
    x = 721,940,123.12/30,548.70
  6. Step 6: Final answer
    x = 23,632.43

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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.