Home / 31,515.33-43,492.16-18,089.05

Finding the Fourth Proportional to 31,515.33, 43,492.16 and 18,089.05

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Solution

The fourth proportional to 31,515.33, 43,492.16 and 18,089.05 is: 24,963.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.33 : 43,492.16 = 18,089.05 : x
  2. Step 2: Convert to fraction form
    31,515.33/43,492.16 = 18,089.05/x
  3. Step 3: Cross multiply
    31,515.33x = 43,492.16 × 18,089.05
  4. Step 4: Simplify right side
    31,515.33x = 786,731,766.40
  5. Step 5: Solve for x
    x = 786,731,766.40/31,515.33
  6. Step 6: Final answer
    x = 24,963.46

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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.