Home / 31,312.70-43,211.36-17,165.54

Finding the Fourth Proportional to 31,312.70, 43,211.36 and 17,165.54

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Solution

The fourth proportional to 31,312.70, 43,211.36 and 17,165.54 is: 23,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.70 : 43,211.36 = 17,165.54 : x
  2. Step 2: Convert to fraction form
    31,312.70/43,211.36 = 17,165.54/x
  3. Step 3: Cross multiply
    31,312.70x = 43,211.36 × 17,165.54
  4. Step 4: Simplify right side
    31,312.70x = 741,746,026.65
  5. Step 5: Solve for x
    x = 741,746,026.65/31,312.70
  6. Step 6: Final answer
    x = 23,688.35

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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.