Home / 30,542.56-42,148.88-19,925.92

Finding the Fourth Proportional to 30,542.56, 42,148.88 and 19,925.92

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Solution

The fourth proportional to 30,542.56, 42,148.88 and 19,925.92 is: 27,497.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,542.56 : 42,148.88 = 19,925.92 : x
  2. Step 2: Convert to fraction form
    30,542.56/42,148.88 = 19,925.92/x
  3. Step 3: Cross multiply
    30,542.56x = 42,148.88 × 19,925.92
  4. Step 4: Simplify right side
    30,542.56x = 839,855,210.97
  5. Step 5: Solve for x
    x = 839,855,210.97/30,542.56
  6. Step 6: Final answer
    x = 27,497.87

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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.