Home / 21,576.58-32,345.43-8,425.72

Finding the Fourth Proportional to 21,576.58, 32,345.43 and 8,425.72

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Solution

The fourth proportional to 21,576.58, 32,345.43 and 8,425.72 is: 12,630.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,576.58 : 32,345.43 = 8,425.72 : x
  2. Step 2: Convert to fraction form
    21,576.58/32,345.43 = 8,425.72/x
  3. Step 3: Cross multiply
    21,576.58x = 32,345.43 × 8,425.72
  4. Step 4: Simplify right side
    21,576.58x = 272,533,545.29
  5. Step 5: Solve for x
    x = 272,533,545.29/21,576.58
  6. Step 6: Final answer
    x = 12,630.99

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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.