Home / 17,988.12-24,691.53-15,954.21

Finding the Fourth Proportional to 17,988.12, 24,691.53 and 15,954.21

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Solution

The fourth proportional to 17,988.12, 24,691.53 and 15,954.21 is: 21,899.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,988.12 : 24,691.53 = 15,954.21 : x
  2. Step 2: Convert to fraction form
    17,988.12/24,691.53 = 15,954.21/x
  3. Step 3: Cross multiply
    17,988.12x = 24,691.53 × 15,954.21
  4. Step 4: Simplify right side
    17,988.12x = 393,933,854.84
  5. Step 5: Solve for x
    x = 393,933,854.84/17,988.12
  6. Step 6: Final answer
    x = 21,899.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.