Home / 18,885.16-28,440.17-16,449.40

Finding the Fourth Proportional to 18,885.16, 28,440.17 and 16,449.40

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Solution

The fourth proportional to 18,885.16, 28,440.17 and 16,449.40 is: 24,772.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.16 : 28,440.17 = 16,449.40 : x
  2. Step 2: Convert to fraction form
    18,885.16/28,440.17 = 16,449.40/x
  3. Step 3: Cross multiply
    18,885.16x = 28,440.17 × 16,449.40
  4. Step 4: Simplify right side
    18,885.16x = 467,823,741.81
  5. Step 5: Solve for x
    x = 467,823,741.81/18,885.16
  6. Step 6: Final answer
    x = 24,772.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.