Home / 38,770.80-58,156.51-21,231.06

Finding the Fourth Proportional to 38,770.80, 58,156.51 and 21,231.06

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Solution

The fourth proportional to 38,770.80, 58,156.51 and 21,231.06 is: 31,846.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,770.80 : 58,156.51 = 21,231.06 : x
  2. Step 2: Convert to fraction form
    38,770.80/58,156.51 = 21,231.06/x
  3. Step 3: Cross multiply
    38,770.80x = 58,156.51 × 21,231.06
  4. Step 4: Simplify right side
    38,770.80x = 1,234,724,389.26
  5. Step 5: Solve for x
    x = 1,234,724,389.26/38,770.80
  6. Step 6: Final answer
    x = 31,846.76

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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.