Home / 20,184.95-27,862.98-15,163.74

Finding the Fourth Proportional to 20,184.95, 27,862.98 and 15,163.74

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Solution

The fourth proportional to 20,184.95, 27,862.98 and 15,163.74 is: 20,931.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.95 : 27,862.98 = 15,163.74 : x
  2. Step 2: Convert to fraction form
    20,184.95/27,862.98 = 15,163.74/x
  3. Step 3: Cross multiply
    20,184.95x = 27,862.98 × 15,163.74
  4. Step 4: Simplify right side
    20,184.95x = 422,506,845.03
  5. Step 5: Solve for x
    x = 422,506,845.03/20,184.95
  6. Step 6: Final answer
    x = 20,931.78

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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.