Home / 27,219.60-40,835.16-12,424.38

Finding the Fourth Proportional to 27,219.60, 40,835.16 and 12,424.38

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Solution

The fourth proportional to 27,219.60, 40,835.16 and 12,424.38 is: 18,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,219.60 : 40,835.16 = 12,424.38 : x
  2. Step 2: Convert to fraction form
    27,219.60/40,835.16 = 12,424.38/x
  3. Step 3: Cross multiply
    27,219.60x = 40,835.16 × 12,424.38
  4. Step 4: Simplify right side
    27,219.60x = 507,351,545.20
  5. Step 5: Solve for x
    x = 507,351,545.20/27,219.60
  6. Step 6: Final answer
    x = 18,639.20

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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.