Home / 21,612.40-29,835.07-15,244.18

Finding the Fourth Proportional to 21,612.40, 29,835.07 and 15,244.18

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Solution

The fourth proportional to 21,612.40, 29,835.07 and 15,244.18 is: 21,043.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,612.40 : 29,835.07 = 15,244.18 : x
  2. Step 2: Convert to fraction form
    21,612.40/29,835.07 = 15,244.18/x
  3. Step 3: Cross multiply
    21,612.40x = 29,835.07 × 15,244.18
  4. Step 4: Simplify right side
    21,612.40x = 454,811,064.69
  5. Step 5: Solve for x
    x = 454,811,064.69/21,612.40
  6. Step 6: Final answer
    x = 21,043.99

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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.