Home / 28,422.08-39,221.85-16,486.53

Finding the Fourth Proportional to 28,422.08, 39,221.85 and 16,486.53

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Solution

The fourth proportional to 28,422.08, 39,221.85 and 16,486.53 is: 22,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,422.08 : 39,221.85 = 16,486.53 : x
  2. Step 2: Convert to fraction form
    28,422.08/39,221.85 = 16,486.53/x
  3. Step 3: Cross multiply
    28,422.08x = 39,221.85 × 16,486.53
  4. Step 4: Simplify right side
    28,422.08x = 646,632,206.68
  5. Step 5: Solve for x
    x = 646,632,206.68/28,422.08
  6. Step 6: Final answer
    x = 22,751.05

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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.