Home / 28,670.66-42,988.96-10,902.62

Finding the Fourth Proportional to 28,670.66, 42,988.96 and 10,902.62

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Solution

The fourth proportional to 28,670.66, 42,988.96 and 10,902.62 is: 16,347.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,670.66 : 42,988.96 = 10,902.62 : x
  2. Step 2: Convert to fraction form
    28,670.66/42,988.96 = 10,902.62/x
  3. Step 3: Cross multiply
    28,670.66x = 42,988.96 × 10,902.62
  4. Step 4: Simplify right side
    28,670.66x = 468,692,295.08
  5. Step 5: Solve for x
    x = 468,692,295.08/28,670.66
  6. Step 6: Final answer
    x = 16,347.45

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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.