Home / 28,528.22-42,781.70-9,802.96

Finding the Fourth Proportional to 28,528.22, 42,781.70 and 9,802.96

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Solution

The fourth proportional to 28,528.22, 42,781.70 and 9,802.96 is: 14,700.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.22 : 42,781.70 = 9,802.96 : x
  2. Step 2: Convert to fraction form
    28,528.22/42,781.70 = 9,802.96/x
  3. Step 3: Cross multiply
    28,528.22x = 42,781.70 × 9,802.96
  4. Step 4: Simplify right side
    28,528.22x = 419,387,211.39
  5. Step 5: Solve for x
    x = 419,387,211.39/28,528.22
  6. Step 6: Final answer
    x = 14,700.78

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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.