Home / 25,531.34-38,270.67-18,493.65

Finding the Fourth Proportional to 25,531.34, 38,270.67 and 18,493.65

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Solution

The fourth proportional to 25,531.34, 38,270.67 and 18,493.65 is: 27,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,531.34 : 38,270.67 = 18,493.65 : x
  2. Step 2: Convert to fraction form
    25,531.34/38,270.67 = 18,493.65/x
  3. Step 3: Cross multiply
    25,531.34x = 38,270.67 × 18,493.65
  4. Step 4: Simplify right side
    25,531.34x = 707,764,376.25
  5. Step 5: Solve for x
    x = 707,764,376.25/25,531.34
  6. Step 6: Final answer
    x = 27,721.40

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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.