Home / 21,440.15-32,171.20-10,208.19

Finding the Fourth Proportional to 21,440.15, 32,171.20 and 10,208.19

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Solution

The fourth proportional to 21,440.15, 32,171.20 and 10,208.19 is: 15,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.15 : 32,171.20 = 10,208.19 : x
  2. Step 2: Convert to fraction form
    21,440.15/32,171.20 = 10,208.19/x
  3. Step 3: Cross multiply
    21,440.15x = 32,171.20 × 10,208.19
  4. Step 4: Simplify right side
    21,440.15x = 328,409,696.61
  5. Step 5: Solve for x
    x = 328,409,696.61/21,440.15
  6. Step 6: Final answer
    x = 15,317.51

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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.