Home / 21,645.60-32,423.04-11,225.76

Finding the Fourth Proportional to 21,645.60, 32,423.04 and 11,225.76

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Solution

The fourth proportional to 21,645.60, 32,423.04 and 11,225.76 is: 16,815.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,645.60 : 32,423.04 = 11,225.76 : x
  2. Step 2: Convert to fraction form
    21,645.60/32,423.04 = 11,225.76/x
  3. Step 3: Cross multiply
    21,645.60x = 32,423.04 × 11,225.76
  4. Step 4: Simplify right side
    21,645.60x = 363,973,265.51
  5. Step 5: Solve for x
    x = 363,973,265.51/21,645.60
  6. Step 6: Final answer
    x = 16,815.12

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1.5x scale

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.