Home / 21,384.81-32,223.22-17,574.57

Finding the Fourth Proportional to 21,384.81, 32,223.22 and 17,574.57

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Solution

The fourth proportional to 21,384.81, 32,223.22 and 17,574.57 is: 26,481.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384.81 : 32,223.22 = 17,574.57 : x
  2. Step 2: Convert to fraction form
    21,384.81/32,223.22 = 17,574.57/x
  3. Step 3: Cross multiply
    21,384.81x = 32,223.22 × 17,574.57
  4. Step 4: Simplify right side
    21,384.81x = 566,309,191.58
  5. Step 5: Solve for x
    x = 566,309,191.58/21,384.81
  6. Step 6: Final answer
    x = 26,481.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.