Home / 48,579.75-72,869.63-13,520.32

Finding the Fourth Proportional to 48,579.75, 72,869.63 and 13,520.32

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Solution

The fourth proportional to 48,579.75, 72,869.63 and 13,520.32 is: 20,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,579.75 : 72,869.63 = 13,520.32 : x
  2. Step 2: Convert to fraction form
    48,579.75/72,869.63 = 13,520.32/x
  3. Step 3: Cross multiply
    48,579.75x = 72,869.63 × 13,520.32
  4. Step 4: Simplify right side
    48,579.75x = 985,220,466.11
  5. Step 5: Solve for x
    x = 985,220,466.11/48,579.75
  6. Step 6: Final answer
    x = 20,280.48

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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.