Home / 28,108.20-42,111.10-22,885.80

Finding the Fourth Proportional to 28,108.20, 42,111.10 and 22,885.80

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Solution

The fourth proportional to 28,108.20, 42,111.10 and 22,885.80 is: 34,287.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.20 : 42,111.10 = 22,885.80 : x
  2. Step 2: Convert to fraction form
    28,108.20/42,111.10 = 22,885.80/x
  3. Step 3: Cross multiply
    28,108.20x = 42,111.10 × 22,885.80
  4. Step 4: Simplify right side
    28,108.20x = 963,746,212.38
  5. Step 5: Solve for x
    x = 963,746,212.38/28,108.20
  6. Step 6: Final answer
    x = 34,287.01

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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.