Home / 31,515.14-43,492.60-18,086.28

Finding the Fourth Proportional to 31,515.14, 43,492.60 and 18,086.28

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Solution

The fourth proportional to 31,515.14, 43,492.60 and 18,086.28 is: 24,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.14 : 43,492.60 = 18,086.28 : x
  2. Step 2: Convert to fraction form
    31,515.14/43,492.60 = 18,086.28/x
  3. Step 3: Cross multiply
    31,515.14x = 43,492.60 × 18,086.28
  4. Step 4: Simplify right side
    31,515.14x = 786,619,341.53
  5. Step 5: Solve for x
    x = 786,619,341.53/31,515.14
  6. Step 6: Final answer
    x = 24,960.05

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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.