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Finding the Fourth Proportional to 28,875.44, 39,854.04 and 16,945.04

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Solution

The fourth proportional to 28,875.44, 39,854.04 and 16,945.04 is: 23,387.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.44 : 39,854.04 = 16,945.04 : x
  2. Step 2: Convert to fraction form
    28,875.44/39,854.04 = 16,945.04/x
  3. Step 3: Cross multiply
    28,875.44x = 39,854.04 × 16,945.04
  4. Step 4: Simplify right side
    28,875.44x = 675,328,301.96
  5. Step 5: Solve for x
    x = 675,328,301.96/28,875.44
  6. Step 6: Final answer
    x = 23,387.64

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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.