Home / 21,836.70-32,746.95-8,686.35

Finding the Fourth Proportional to 21,836.70, 32,746.95 and 8,686.35

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Solution

The fourth proportional to 21,836.70, 32,746.95 and 8,686.35 is: 13,026.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,836.70 : 32,746.95 = 8,686.35 : x
  2. Step 2: Convert to fraction form
    21,836.70/32,746.95 = 8,686.35/x
  3. Step 3: Cross multiply
    21,836.70x = 32,746.95 × 8,686.35
  4. Step 4: Simplify right side
    21,836.70x = 284,451,469.13
  5. Step 5: Solve for x
    x = 284,451,469.13/21,836.70
  6. Step 6: Final answer
    x = 13,026.30

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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.