Home / 20,356.95-28,092.44-11,404.53

Finding the Fourth Proportional to 20,356.95, 28,092.44 and 11,404.53

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Solution

The fourth proportional to 20,356.95, 28,092.44 and 11,404.53 is: 15,738.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.95 : 28,092.44 = 11,404.53 : x
  2. Step 2: Convert to fraction form
    20,356.95/28,092.44 = 11,404.53/x
  3. Step 3: Cross multiply
    20,356.95x = 28,092.44 × 11,404.53
  4. Step 4: Simplify right side
    20,356.95x = 320,381,018.52
  5. Step 5: Solve for x
    x = 320,381,018.52/20,356.95
  6. Step 6: Final answer
    x = 15,738.16

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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.