Home / 21,059.76-31,575.96-14,784.88

Finding the Fourth Proportional to 21,059.76, 31,575.96 and 14,784.88

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Solution

The fourth proportional to 21,059.76, 31,575.96 and 14,784.88 is: 22,167.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.76 : 31,575.96 = 14,784.88 : x
  2. Step 2: Convert to fraction form
    21,059.76/31,575.96 = 14,784.88/x
  3. Step 3: Cross multiply
    21,059.76x = 31,575.96 × 14,784.88
  4. Step 4: Simplify right side
    21,059.76x = 466,846,779.48
  5. Step 5: Solve for x
    x = 466,846,779.48/21,059.76
  6. Step 6: Final answer
    x = 22,167.72

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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.