Home / 21,410.60-32,106.30-9,717.80

Finding the Fourth Proportional to 21,410.60, 32,106.30 and 9,717.80

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Solution

The fourth proportional to 21,410.60, 32,106.30 and 9,717.80 is: 14,572.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.60 : 32,106.30 = 9,717.80 : x
  2. Step 2: Convert to fraction form
    21,410.60/32,106.30 = 9,717.80/x
  3. Step 3: Cross multiply
    21,410.60x = 32,106.30 × 9,717.80
  4. Step 4: Simplify right side
    21,410.60x = 312,002,602.14
  5. Step 5: Solve for x
    x = 312,002,602.14/21,410.60
  6. Step 6: Final answer
    x = 14,572.34

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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.