Home / 55,302.10-82,953.15-20,245.30

Finding the Fourth Proportional to 55,302.10, 82,953.15 and 20,245.30

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Solution

The fourth proportional to 55,302.10, 82,953.15 and 20,245.30 is: 30,367.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,302.10 : 82,953.15 = 20,245.30 : x
  2. Step 2: Convert to fraction form
    55,302.10/82,953.15 = 20,245.30/x
  3. Step 3: Cross multiply
    55,302.10x = 82,953.15 × 20,245.30
  4. Step 4: Simplify right side
    55,302.10x = 1,679,411,407.70
  5. Step 5: Solve for x
    x = 1,679,411,407.70/55,302.10
  6. Step 6: Final answer
    x = 30,367.95

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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.