Home / 31,325.67-43,228.40-18,586.40

Finding the Fourth Proportional to 31,325.67, 43,228.40 and 18,586.40

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Solution

The fourth proportional to 31,325.67, 43,228.40 and 18,586.40 is: 25,648.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,325.67 : 43,228.40 = 18,586.40 : x
  2. Step 2: Convert to fraction form
    31,325.67/43,228.40 = 18,586.40/x
  3. Step 3: Cross multiply
    31,325.67x = 43,228.40 × 18,586.40
  4. Step 4: Simplify right side
    31,325.67x = 803,460,024.69
  5. Step 5: Solve for x
    x = 803,460,024.69/31,325.67
  6. Step 6: Final answer
    x = 25,648.61

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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.