Home / 31,370.12-43,285.18-17,758.10

Finding the Fourth Proportional to 31,370.12, 43,285.18 and 17,758.10

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Solution

The fourth proportional to 31,370.12, 43,285.18 and 17,758.10 is: 24,503.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,370.12 : 43,285.18 = 17,758.10 : x
  2. Step 2: Convert to fraction form
    31,370.12/43,285.18 = 17,758.10/x
  3. Step 3: Cross multiply
    31,370.12x = 43,285.18 × 17,758.10
  4. Step 4: Simplify right side
    31,370.12x = 768,662,554.96
  5. Step 5: Solve for x
    x = 768,662,554.96/31,370.12
  6. Step 6: Final answer
    x = 24,503.02

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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.