Home / 15,242.40-21,023.21-10,761.48

Finding the Fourth Proportional to 15,242.40, 21,023.21 and 10,761.48

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Solution

The fourth proportional to 15,242.40, 21,023.21 and 10,761.48 is: 14,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.40 : 21,023.21 = 10,761.48 : x
  2. Step 2: Convert to fraction form
    15,242.40/21,023.21 = 10,761.48/x
  3. Step 3: Cross multiply
    15,242.40x = 21,023.21 × 10,761.48
  4. Step 4: Simplify right side
    15,242.40x = 226,240,880.85
  5. Step 5: Solve for x
    x = 226,240,880.85/15,242.40
  6. Step 6: Final answer
    x = 14,842.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.