Home / 21,840.40-32,764.02-9,360.28

Finding the Fourth Proportional to 21,840.40, 32,764.02 and 9,360.28

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Solution

The fourth proportional to 21,840.40, 32,764.02 and 9,360.28 is: 14,041.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840.40 : 32,764.02 = 9,360.28 : x
  2. Step 2: Convert to fraction form
    21,840.40/32,764.02 = 9,360.28/x
  3. Step 3: Cross multiply
    21,840.40x = 32,764.02 × 9,360.28
  4. Step 4: Simplify right side
    21,840.40x = 306,680,401.13
  5. Step 5: Solve for x
    x = 306,680,401.13/21,840.40
  6. Step 6: Final answer
    x = 14,041.89

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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.