Home / 30,979.26-42,750.38-16,832.00

Finding the Fourth Proportional to 30,979.26, 42,750.38 and 16,832.00

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Solution

The fourth proportional to 30,979.26, 42,750.38 and 16,832.00 is: 23,227.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.26 : 42,750.38 = 16,832.00 : x
  2. Step 2: Convert to fraction form
    30,979.26/42,750.38 = 16,832.00/x
  3. Step 3: Cross multiply
    30,979.26x = 42,750.38 × 16,832.00
  4. Step 4: Simplify right side
    30,979.26x = 719,574,545.12
  5. Step 5: Solve for x
    x = 719,574,545.12/30,979.26
  6. Step 6: Final answer
    x = 23,227.62

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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.