Home / 21,890.70-32,787.45-18,002.70

Finding the Fourth Proportional to 21,890.70, 32,787.45 and 18,002.70

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Solution

The fourth proportional to 21,890.70, 32,787.45 and 18,002.70 is: 26,964.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.70 : 32,787.45 = 18,002.70 : x
  2. Step 2: Convert to fraction form
    21,890.70/32,787.45 = 18,002.70/x
  3. Step 3: Cross multiply
    21,890.70x = 32,787.45 × 18,002.70
  4. Step 4: Simplify right side
    21,890.70x = 590,262,626.12
  5. Step 5: Solve for x
    x = 590,262,626.12/21,890.70
  6. Step 6: Final answer
    x = 26,964.08

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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.