Home / 38,979.40-58,472.79-10,899.45

Finding the Fourth Proportional to 38,979.40, 58,472.79 and 10,899.45

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Solution

The fourth proportional to 38,979.40, 58,472.79 and 10,899.45 is: 16,350.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,979.40 : 58,472.79 = 10,899.45 : x
  2. Step 2: Convert to fraction form
    38,979.40/58,472.79 = 10,899.45/x
  3. Step 3: Cross multiply
    38,979.40x = 58,472.79 × 10,899.45
  4. Step 4: Simplify right side
    38,979.40x = 637,321,428.23
  5. Step 5: Solve for x
    x = 637,321,428.23/38,979.40
  6. Step 6: Final answer
    x = 16,350.21

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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.