Home / 28,322.40-42,486.48-8,605.92

Finding the Fourth Proportional to 28,322.40, 42,486.48 and 8,605.92

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Solution

The fourth proportional to 28,322.40, 42,486.48 and 8,605.92 is: 12,909.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.40 : 42,486.48 = 8,605.92 : x
  2. Step 2: Convert to fraction form
    28,322.40/42,486.48 = 8,605.92/x
  3. Step 3: Cross multiply
    28,322.40x = 42,486.48 × 8,605.92
  4. Step 4: Simplify right side
    28,322.40x = 365,635,247.96
  5. Step 5: Solve for x
    x = 365,635,247.96/28,322.40
  6. Step 6: Final answer
    x = 12,909.76

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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.