Home / 28,370.13-42,557.58-8,648.84

Finding the Fourth Proportional to 28,370.13, 42,557.58 and 8,648.84

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Solution

The fourth proportional to 28,370.13, 42,557.58 and 8,648.84 is: 12,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.13 : 42,557.58 = 8,648.84 : x
  2. Step 2: Convert to fraction form
    28,370.13/42,557.58 = 8,648.84/x
  3. Step 3: Cross multiply
    28,370.13x = 42,557.58 × 8,648.84
  4. Step 4: Simplify right side
    28,370.13x = 368,073,487.42
  5. Step 5: Solve for x
    x = 368,073,487.42/28,370.13
  6. Step 6: Final answer
    x = 12,973.98

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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.