Home / 38,720.23-58,080.98-10,640.11

Finding the Fourth Proportional to 38,720.23, 58,080.98 and 10,640.11

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Solution

The fourth proportional to 38,720.23, 58,080.98 and 10,640.11 is: 15,960.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,720.23 : 58,080.98 = 10,640.11 : x
  2. Step 2: Convert to fraction form
    38,720.23/58,080.98 = 10,640.11/x
  3. Step 3: Cross multiply
    38,720.23x = 58,080.98 × 10,640.11
  4. Step 4: Simplify right side
    38,720.23x = 617,988,042.71
  5. Step 5: Solve for x
    x = 617,988,042.71/38,720.23
  6. Step 6: Final answer
    x = 15,960.34

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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.