Home / 28,497.78-39,326.16-15,922.53

Finding the Fourth Proportional to 28,497.78, 39,326.16 and 15,922.53

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Solution

The fourth proportional to 28,497.78, 39,326.16 and 15,922.53 is: 21,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,497.78 : 39,326.16 = 15,922.53 : x
  2. Step 2: Convert to fraction form
    28,497.78/39,326.16 = 15,922.53/x
  3. Step 3: Cross multiply
    28,497.78x = 39,326.16 × 15,922.53
  4. Step 4: Simplify right side
    28,497.78x = 626,171,962.38
  5. Step 5: Solve for x
    x = 626,171,962.38/28,497.78
  6. Step 6: Final answer
    x = 21,972.66

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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.