Home / 15,393.30-21,252.18-10,020.84

Finding the Fourth Proportional to 15,393.30, 21,252.18 and 10,020.84

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Solution

The fourth proportional to 15,393.30, 21,252.18 and 10,020.84 is: 13,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,393.30 : 21,252.18 = 10,020.84 : x
  2. Step 2: Convert to fraction form
    15,393.30/21,252.18 = 10,020.84/x
  3. Step 3: Cross multiply
    15,393.30x = 21,252.18 × 10,020.84
  4. Step 4: Simplify right side
    15,393.30x = 212,964,695.43
  5. Step 5: Solve for x
    x = 212,964,695.43/15,393.30
  6. Step 6: Final answer
    x = 13,834.90

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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.