Home / 31,385.86-43,319.95-17,964.85

Finding the Fourth Proportional to 31,385.86, 43,319.95 and 17,964.85

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Solution

The fourth proportional to 31,385.86, 43,319.95 and 17,964.85 is: 24,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,385.86 : 43,319.95 = 17,964.85 : x
  2. Step 2: Convert to fraction form
    31,385.86/43,319.95 = 17,964.85/x
  3. Step 3: Cross multiply
    31,385.86x = 43,319.95 × 17,964.85
  4. Step 4: Simplify right side
    31,385.86x = 778,236,403.76
  5. Step 5: Solve for x
    x = 778,236,403.76/31,385.86
  6. Step 6: Final answer
    x = 24,795.76

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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.