Home / 21,787.02-30,059.24-12,353.76

Finding the Fourth Proportional to 21,787.02, 30,059.24 and 12,353.76

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Solution

The fourth proportional to 21,787.02, 30,059.24 and 12,353.76 is: 17,044.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,787.02 : 30,059.24 = 12,353.76 : x
  2. Step 2: Convert to fraction form
    21,787.02/30,059.24 = 12,353.76/x
  3. Step 3: Cross multiply
    21,787.02x = 30,059.24 × 12,353.76
  4. Step 4: Simplify right side
    21,787.02x = 371,344,574.97
  5. Step 5: Solve for x
    x = 371,344,574.97/21,787.02
  6. Step 6: Final answer
    x = 17,044.30

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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.