Home / 28,772.38-39,707.88-17,442.35

Finding the Fourth Proportional to 28,772.38, 39,707.88 and 17,442.35

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Solution

The fourth proportional to 28,772.38, 39,707.88 and 17,442.35 is: 24,071.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772.38 : 39,707.88 = 17,442.35 : x
  2. Step 2: Convert to fraction form
    28,772.38/39,707.88 = 17,442.35/x
  3. Step 3: Cross multiply
    28,772.38x = 39,707.88 × 17,442.35
  4. Step 4: Simplify right side
    28,772.38x = 692,598,978.82
  5. Step 5: Solve for x
    x = 692,598,978.82/28,772.38
  6. Step 6: Final answer
    x = 24,071.66

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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.