Home / 18,459.64-25,480.38-14,689.72

Finding the Fourth Proportional to 18,459.64, 25,480.38 and 14,689.72

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Solution

The fourth proportional to 18,459.64, 25,480.38 and 14,689.72 is: 20,276.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,459.64 : 25,480.38 = 14,689.72 : x
  2. Step 2: Convert to fraction form
    18,459.64/25,480.38 = 14,689.72/x
  3. Step 3: Cross multiply
    18,459.64x = 25,480.38 × 14,689.72
  4. Step 4: Simplify right side
    18,459.64x = 374,299,647.69
  5. Step 5: Solve for x
    x = 374,299,647.69/18,459.64
  6. Step 6: Final answer
    x = 20,276.65

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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.