Home / 30,490.83-42,079.12-17,061.98

Finding the Fourth Proportional to 30,490.83, 42,079.12 and 17,061.98

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Solution

The fourth proportional to 30,490.83, 42,079.12 and 17,061.98 is: 23,546.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,490.83 : 42,079.12 = 17,061.98 : x
  2. Step 2: Convert to fraction form
    30,490.83/42,079.12 = 17,061.98/x
  3. Step 3: Cross multiply
    30,490.83x = 42,079.12 × 17,061.98
  4. Step 4: Simplify right side
    30,490.83x = 717,952,850.81
  5. Step 5: Solve for x
    x = 717,952,850.81/30,490.83
  6. Step 6: Final answer
    x = 23,546.52

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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.