Home / 20,545.94-28,353.63-11,593.55

Finding the Fourth Proportional to 20,545.94, 28,353.63 and 11,593.55

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Solution

The fourth proportional to 20,545.94, 28,353.63 and 11,593.55 is: 15,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.94 : 28,353.63 = 11,593.55 : x
  2. Step 2: Convert to fraction form
    20,545.94/28,353.63 = 11,593.55/x
  3. Step 3: Cross multiply
    20,545.94x = 28,353.63 × 11,593.55
  4. Step 4: Simplify right side
    20,545.94x = 328,719,085.32
  5. Step 5: Solve for x
    x = 328,719,085.32/20,545.94
  6. Step 6: Final answer
    x = 15,999.23

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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.