Home / 38,120.80-52,605.16-21,125.29

Finding the Fourth Proportional to 38,120.80, 52,605.16 and 21,125.29

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Solution

The fourth proportional to 38,120.80, 52,605.16 and 21,125.29 is: 29,152.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.80 : 52,605.16 = 21,125.29 : x
  2. Step 2: Convert to fraction form
    38,120.80/52,605.16 = 21,125.29/x
  3. Step 3: Cross multiply
    38,120.80x = 52,605.16 × 21,125.29
  4. Step 4: Simplify right side
    38,120.80x = 1,111,299,260.50
  5. Step 5: Solve for x
    x = 1,111,299,260.50/38,120.80
  6. Step 6: Final answer
    x = 29,152.04

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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.