Home / 38,186.70-52,707.69-21,425.10

Finding the Fourth Proportional to 38,186.70, 52,707.69 and 21,425.10

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Solution

The fourth proportional to 38,186.70, 52,707.69 and 21,425.10 is: 29,572.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,186.70 : 52,707.69 = 21,425.10 : x
  2. Step 2: Convert to fraction form
    38,186.70/52,707.69 = 21,425.10/x
  3. Step 3: Cross multiply
    38,186.70x = 52,707.69 × 21,425.10
  4. Step 4: Simplify right side
    38,186.70x = 1,129,267,529.02
  5. Step 5: Solve for x
    x = 1,129,267,529.02/38,186.70
  6. Step 6: Final answer
    x = 29,572.27

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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.