Home / 30,695.24-42,336.76-18,748.76

Finding the Fourth Proportional to 30,695.24, 42,336.76 and 18,748.76

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Solution

The fourth proportional to 30,695.24, 42,336.76 and 18,748.76 is: 25,859.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,695.24 : 42,336.76 = 18,748.76 : x
  2. Step 2: Convert to fraction form
    30,695.24/42,336.76 = 18,748.76/x
  3. Step 3: Cross multiply
    30,695.24x = 42,336.76 × 18,748.76
  4. Step 4: Simplify right side
    30,695.24x = 793,761,752.42
  5. Step 5: Solve for x
    x = 793,761,752.42/30,695.24
  6. Step 6: Final answer
    x = 25,859.44

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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.