Home / 38,699.42-58,065.55-21,148.75

Finding the Fourth Proportional to 38,699.42, 58,065.55 and 21,148.75

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Solution

The fourth proportional to 38,699.42, 58,065.55 and 21,148.75 is: 31,732.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,699.42 : 58,065.55 = 21,148.75 : x
  2. Step 2: Convert to fraction form
    38,699.42/58,065.55 = 21,148.75/x
  3. Step 3: Cross multiply
    38,699.42x = 58,065.55 × 21,148.75
  4. Step 4: Simplify right side
    38,699.42x = 1,228,013,602.53
  5. Step 5: Solve for x
    x = 1,228,013,602.53/38,699.42
  6. Step 6: Final answer
    x = 31,732.09

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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.