Home / 21,012.17-31,527.41-11,148.98

Finding the Fourth Proportional to 21,012.17, 31,527.41 and 11,148.98

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Solution

The fourth proportional to 21,012.17, 31,527.41 and 11,148.98 is: 16,728.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,012.17 : 31,527.41 = 11,148.98 : x
  2. Step 2: Convert to fraction form
    21,012.17/31,527.41 = 11,148.98/x
  3. Step 3: Cross multiply
    21,012.17x = 31,527.41 × 11,148.98
  4. Step 4: Simplify right side
    21,012.17x = 351,498,250.16
  5. Step 5: Solve for x
    x = 351,498,250.16/21,012.17
  6. Step 6: Final answer
    x = 16,728.32

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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.