Home / 21,400.16-32,143.96-17,458.08

Finding the Fourth Proportional to 21,400.16, 32,143.96 and 17,458.08

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Solution

The fourth proportional to 21,400.16, 32,143.96 and 17,458.08 is: 26,222.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,400.16 : 32,143.96 = 17,458.08 : x
  2. Step 2: Convert to fraction form
    21,400.16/32,143.96 = 17,458.08/x
  3. Step 3: Cross multiply
    21,400.16x = 32,143.96 × 17,458.08
  4. Step 4: Simplify right side
    21,400.16x = 561,171,825.20
  5. Step 5: Solve for x
    x = 561,171,825.20/21,400.16
  6. Step 6: Final answer
    x = 26,222.79

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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.