Home / 21,908.60-32,819.70-13,117.40

Finding the Fourth Proportional to 21,908.60, 32,819.70 and 13,117.40

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Solution

The fourth proportional to 21,908.60, 32,819.70 and 13,117.40 is: 19,650.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,908.60 : 32,819.70 = 13,117.40 : x
  2. Step 2: Convert to fraction form
    21,908.60/32,819.70 = 13,117.40/x
  3. Step 3: Cross multiply
    21,908.60x = 32,819.70 × 13,117.40
  4. Step 4: Simplify right side
    21,908.60x = 430,509,132.78
  5. Step 5: Solve for x
    x = 430,509,132.78/21,908.60
  6. Step 6: Final answer
    x = 19,650.23

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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.