Home / 21,549.60-32,310-17,394.72

Finding the Fourth Proportional to 21,549.60, 32,310 and 17,394.72

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Solution

The fourth proportional to 21,549.60, 32,310 and 17,394.72 is: 26,080.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,549.60 : 32,310 = 17,394.72 : x
  2. Step 2: Convert to fraction form
    21,549.60/32,310 = 17,394.72/x
  3. Step 3: Cross multiply
    21,549.60x = 32,310 × 17,394.72
  4. Step 4: Simplify right side
    21,549.60x = 562,023,403.20
  5. Step 5: Solve for x
    x = 562,023,403.20/21,549.60
  6. Step 6: Final answer
    x = 26,080.46

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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.