Home / 21,415.60-32,104.92-10,307.00

Finding the Fourth Proportional to 21,415.60, 32,104.92 and 10,307.00

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Solution

The fourth proportional to 21,415.60, 32,104.92 and 10,307.00 is: 15,451.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,415.60 : 32,104.92 = 10,307.00 : x
  2. Step 2: Convert to fraction form
    21,415.60/32,104.92 = 10,307.00/x
  3. Step 3: Cross multiply
    21,415.60x = 32,104.92 × 10,307.00
  4. Step 4: Simplify right side
    21,415.60x = 330,905,490.70
  5. Step 5: Solve for x
    x = 330,905,490.70/21,415.60
  6. Step 6: Final answer
    x = 15,451.61

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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.