Home / 31,285.86-43,176.56-17,859.84

Finding the Fourth Proportional to 31,285.86, 43,176.56 and 17,859.84

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Solution

The fourth proportional to 31,285.86, 43,176.56 and 17,859.84 is: 24,647.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.86 : 43,176.56 = 17,859.84 : x
  2. Step 2: Convert to fraction form
    31,285.86/43,176.56 = 17,859.84/x
  3. Step 3: Cross multiply
    31,285.86x = 43,176.56 × 17,859.84
  4. Step 4: Simplify right side
    31,285.86x = 771,126,364.05
  5. Step 5: Solve for x
    x = 771,126,364.05/31,285.86
  6. Step 6: Final answer
    x = 24,647.76

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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.