Home / 28,569.68-39,426.16-17,391.68

Finding the Fourth Proportional to 28,569.68, 39,426.16 and 17,391.68

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Solution

The fourth proportional to 28,569.68, 39,426.16 and 17,391.68 is: 24,000.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,569.68 : 39,426.16 = 17,391.68 : x
  2. Step 2: Convert to fraction form
    28,569.68/39,426.16 = 17,391.68/x
  3. Step 3: Cross multiply
    28,569.68x = 39,426.16 × 17,391.68
  4. Step 4: Simplify right side
    28,569.68x = 685,687,158.35
  5. Step 5: Solve for x
    x = 685,687,158.35/28,569.68
  6. Step 6: Final answer
    x = 24,000.52

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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.