Home / 28,060.92-38,715.03-18,631.35

Finding the Fourth Proportional to 28,060.92, 38,715.03 and 18,631.35

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Solution

The fourth proportional to 28,060.92, 38,715.03 and 18,631.35 is: 25,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.92 : 38,715.03 = 18,631.35 : x
  2. Step 2: Convert to fraction form
    28,060.92/38,715.03 = 18,631.35/x
  3. Step 3: Cross multiply
    28,060.92x = 38,715.03 × 18,631.35
  4. Step 4: Simplify right side
    28,060.92x = 721,313,274.19
  5. Step 5: Solve for x
    x = 721,313,274.19/28,060.92
  6. Step 6: Final answer
    x = 25,705.26

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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.