Home / 18,211.60-25,081.32-16,875.28

Finding the Fourth Proportional to 18,211.60, 25,081.32 and 16,875.28

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Solution

The fourth proportional to 18,211.60, 25,081.32 and 16,875.28 is: 23,240.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.60 : 25,081.32 = 16,875.28 : x
  2. Step 2: Convert to fraction form
    18,211.60/25,081.32 = 16,875.28/x
  3. Step 3: Cross multiply
    18,211.60x = 25,081.32 × 16,875.28
  4. Step 4: Simplify right side
    18,211.60x = 423,254,297.77
  5. Step 5: Solve for x
    x = 423,254,297.77/18,211.60
  6. Step 6: Final answer
    x = 23,240.92

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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.