Home / 28,880.40-39,857.76-17,547.42

Finding the Fourth Proportional to 28,880.40, 39,857.76 and 17,547.42

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Solution

The fourth proportional to 28,880.40, 39,857.76 and 17,547.42 is: 24,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,880.40 : 39,857.76 = 17,547.42 : x
  2. Step 2: Convert to fraction form
    28,880.40/39,857.76 = 17,547.42/x
  3. Step 3: Cross multiply
    28,880.40x = 39,857.76 × 17,547.42
  4. Step 4: Simplify right side
    28,880.40x = 699,400,854.98
  5. Step 5: Solve for x
    x = 699,400,854.98/28,880.40
  6. Step 6: Final answer
    x = 24,217.15

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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.