Home / 28,254.92-42,383.10-8,534.12

Finding the Fourth Proportional to 28,254.92, 42,383.10 and 8,534.12

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Solution

The fourth proportional to 28,254.92, 42,383.10 and 8,534.12 is: 12,801.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.92 : 42,383.10 = 8,534.12 : x
  2. Step 2: Convert to fraction form
    28,254.92/42,383.10 = 8,534.12/x
  3. Step 3: Cross multiply
    28,254.92x = 42,383.10 × 8,534.12
  4. Step 4: Simplify right side
    28,254.92x = 361,702,461.37
  5. Step 5: Solve for x
    x = 361,702,461.37/28,254.92
  6. Step 6: Final answer
    x = 12,801.40

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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.