Home / 21,787.04-30,064.92-12,832.50

Finding the Fourth Proportional to 21,787.04, 30,064.92 and 12,832.50

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Solution

The fourth proportional to 21,787.04, 30,064.92 and 12,832.50 is: 17,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,787.04 : 30,064.92 = 12,832.50 : x
  2. Step 2: Convert to fraction form
    21,787.04/30,064.92 = 12,832.50/x
  3. Step 3: Cross multiply
    21,787.04x = 30,064.92 × 12,832.50
  4. Step 4: Simplify right side
    21,787.04x = 385,808,085.90
  5. Step 5: Solve for x
    x = 385,808,085.90/21,787.04
  6. Step 6: Final answer
    x = 17,708.15

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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.