Home / 40,081.60-55,312.32-22,176.64

Finding the Fourth Proportional to 40,081.60, 55,312.32 and 22,176.64

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Solution

The fourth proportional to 40,081.60, 55,312.32 and 22,176.64 is: 30,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,081.60 : 55,312.32 = 22,176.64 : x
  2. Step 2: Convert to fraction form
    40,081.60/55,312.32 = 22,176.64/x
  3. Step 3: Cross multiply
    40,081.60x = 55,312.32 × 22,176.64
  4. Step 4: Simplify right side
    40,081.60x = 1,226,641,408.20
  5. Step 5: Solve for x
    x = 1,226,641,408.20/40,081.60
  6. Step 6: Final answer
    x = 30,603.60

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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.