Home / 47,298.80-65,280.12-28,446.32

Finding the Fourth Proportional to 47,298.80, 65,280.12 and 28,446.32

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Solution

The fourth proportional to 47,298.80, 65,280.12 and 28,446.32 is: 39,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,298.80 : 65,280.12 = 28,446.32 : x
  2. Step 2: Convert to fraction form
    47,298.80/65,280.12 = 28,446.32/x
  3. Step 3: Cross multiply
    47,298.80x = 65,280.12 × 28,446.32
  4. Step 4: Simplify right side
    47,298.80x = 1,856,979,183.16
  5. Step 5: Solve for x
    x = 1,856,979,183.16/47,298.80
  6. Step 6: Final answer
    x = 39,260.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.