Home / 18,547.24-25,581.23-12,882

Finding the Fourth Proportional to 18,547.24, 25,581.23 and 12,882

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Solution

The fourth proportional to 18,547.24, 25,581.23 and 12,882 is: 17,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,547.24 : 25,581.23 = 12,882 : x
  2. Step 2: Convert to fraction form
    18,547.24/25,581.23 = 12,882/x
  3. Step 3: Cross multiply
    18,547.24x = 25,581.23 × 12,882
  4. Step 4: Simplify right side
    18,547.24x = 329,537,404.86
  5. Step 5: Solve for x
    x = 329,537,404.86/18,547.24
  6. Step 6: Final answer
    x = 17,767.46

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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.