Home / 21,719.04-32,582.40-9,408

Finding the Fourth Proportional to 21,719.04, 32,582.40 and 9,408

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Solution

The fourth proportional to 21,719.04, 32,582.40 and 9,408 is: 14,113.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.04 : 32,582.40 = 9,408 : x
  2. Step 2: Convert to fraction form
    21,719.04/32,582.40 = 9,408/x
  3. Step 3: Cross multiply
    21,719.04x = 32,582.40 × 9,408
  4. Step 4: Simplify right side
    21,719.04x = 306,535,219.20
  5. Step 5: Solve for x
    x = 306,535,219.20/21,719.04
  6. Step 6: Final answer
    x = 14,113.66

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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.