Home / 28,645.16-42,926.20-20,341.44

Finding the Fourth Proportional to 28,645.16, 42,926.20 and 20,341.44

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Solution

The fourth proportional to 28,645.16, 42,926.20 and 20,341.44 is: 30,482.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645.16 : 42,926.20 = 20,341.44 : x
  2. Step 2: Convert to fraction form
    28,645.16/42,926.20 = 20,341.44/x
  3. Step 3: Cross multiply
    28,645.16x = 42,926.20 × 20,341.44
  4. Step 4: Simplify right side
    28,645.16x = 873,180,721.73
  5. Step 5: Solve for x
    x = 873,180,721.73/28,645.16
  6. Step 6: Final answer
    x = 30,482.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.