Home / 39,547.15-54,575.07-21,642.16

Finding the Fourth Proportional to 39,547.15, 54,575.07 and 21,642.16

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Solution

The fourth proportional to 39,547.15, 54,575.07 and 21,642.16 is: 29,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,547.15 : 54,575.07 = 21,642.16 : x
  2. Step 2: Convert to fraction form
    39,547.15/54,575.07 = 21,642.16/x
  3. Step 3: Cross multiply
    39,547.15x = 54,575.07 × 21,642.16
  4. Step 4: Simplify right side
    39,547.15x = 1,181,122,396.95
  5. Step 5: Solve for x
    x = 1,181,122,396.95/39,547.15
  6. Step 6: Final answer
    x = 29,866.18

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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.