Home / 31,027.28-46,543.80-12,560.72

Finding the Fourth Proportional to 31,027.28, 46,543.80 and 12,560.72

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Solution

The fourth proportional to 31,027.28, 46,543.80 and 12,560.72 is: 18,842.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,027.28 : 46,543.80 = 12,560.72 : x
  2. Step 2: Convert to fraction form
    31,027.28/46,543.80 = 12,560.72/x
  3. Step 3: Cross multiply
    31,027.28x = 46,543.80 × 12,560.72
  4. Step 4: Simplify right side
    31,027.28x = 584,623,639.54
  5. Step 5: Solve for x
    x = 584,623,639.54/31,027.28
  6. Step 6: Final answer
    x = 18,842.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.