Home / 28,323.20-42,486.96-8,603.36

Finding the Fourth Proportional to 28,323.20, 42,486.96 and 8,603.36

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Solution

The fourth proportional to 28,323.20, 42,486.96 and 8,603.36 is: 12,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,323.20 : 42,486.96 = 8,603.36 : x
  2. Step 2: Convert to fraction form
    28,323.20/42,486.96 = 8,603.36/x
  3. Step 3: Cross multiply
    28,323.20x = 42,486.96 × 8,603.36
  4. Step 4: Simplify right side
    28,323.20x = 365,530,612.19
  5. Step 5: Solve for x
    x = 365,530,612.19/28,323.20
  6. Step 6: Final answer
    x = 12,905.70

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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.