Home / 21,904.68-32,779.20-15,988.44

Finding the Fourth Proportional to 21,904.68, 32,779.20 and 15,988.44

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Solution

The fourth proportional to 21,904.68, 32,779.20 and 15,988.44 is: 23,925.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.68 : 32,779.20 = 15,988.44 : x
  2. Step 2: Convert to fraction form
    21,904.68/32,779.20 = 15,988.44/x
  3. Step 3: Cross multiply
    21,904.68x = 32,779.20 × 15,988.44
  4. Step 4: Simplify right side
    21,904.68x = 524,088,272.45
  5. Step 5: Solve for x
    x = 524,088,272.45/21,904.68
  6. Step 6: Final answer
    x = 23,925.86

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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.