Home / 17,815.14-24,528.60-15,689.21

Finding the Fourth Proportional to 17,815.14, 24,528.60 and 15,689.21

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Solution

The fourth proportional to 17,815.14, 24,528.60 and 15,689.21 is: 21,601.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,815.14 : 24,528.60 = 15,689.21 : x
  2. Step 2: Convert to fraction form
    17,815.14/24,528.60 = 15,689.21/x
  3. Step 3: Cross multiply
    17,815.14x = 24,528.60 × 15,689.21
  4. Step 4: Simplify right side
    17,815.14x = 384,834,233.76
  5. Step 5: Solve for x
    x = 384,834,233.76/17,815.14
  6. Step 6: Final answer
    x = 21,601.53

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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.