Home / 39,547.55-54,575.62-21,642.57

Finding the Fourth Proportional to 39,547.55, 54,575.62 and 21,642.57

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Solution

The fourth proportional to 39,547.55, 54,575.62 and 21,642.57 is: 29,866.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,547.55 : 54,575.62 = 21,642.57 : x
  2. Step 2: Convert to fraction form
    39,547.55/54,575.62 = 21,642.57/x
  3. Step 3: Cross multiply
    39,547.55x = 54,575.62 × 21,642.57
  4. Step 4: Simplify right side
    39,547.55x = 1,181,156,622.04
  5. Step 5: Solve for x
    x = 1,181,156,622.04/39,547.55
  6. Step 6: Final answer
    x = 29,866.74

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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.