Home / 23,115.84-34,693.20-9,978.18

Finding the Fourth Proportional to 23,115.84, 34,693.20 and 9,978.18

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Solution

The fourth proportional to 23,115.84, 34,693.20 and 9,978.18 is: 14,975.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,115.84 : 34,693.20 = 9,978.18 : x
  2. Step 2: Convert to fraction form
    23,115.84/34,693.20 = 9,978.18/x
  3. Step 3: Cross multiply
    23,115.84x = 34,693.20 × 9,978.18
  4. Step 4: Simplify right side
    23,115.84x = 346,174,994.38
  5. Step 5: Solve for x
    x = 346,174,994.38/23,115.84
  6. Step 6: Final answer
    x = 14,975.66

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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.