Home / 15,927.80-23,891.70-4,242.20

Finding the Fourth Proportional to 15,927.80, 23,891.70 and 4,242.20

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Solution

The fourth proportional to 15,927.80, 23,891.70 and 4,242.20 is: 6,363.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,927.80 : 23,891.70 = 4,242.20 : x
  2. Step 2: Convert to fraction form
    15,927.80/23,891.70 = 4,242.20/x
  3. Step 3: Cross multiply
    15,927.80x = 23,891.70 × 4,242.20
  4. Step 4: Simplify right side
    15,927.80x = 101,353,369.74
  5. Step 5: Solve for x
    x = 101,353,369.74/15,927.80
  6. Step 6: Final answer
    x = 6,363.30

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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.