Home / 19,830.77-29,736.59-11,512.88

Finding the Fourth Proportional to 19,830.77, 29,736.59 and 11,512.88

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Solution

The fourth proportional to 19,830.77, 29,736.59 and 11,512.88 is: 17,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.77 : 29,736.59 = 11,512.88 : x
  2. Step 2: Convert to fraction form
    19,830.77/29,736.59 = 11,512.88/x
  3. Step 3: Cross multiply
    19,830.77x = 29,736.59 × 11,512.88
  4. Step 4: Simplify right side
    19,830.77x = 342,353,734.71
  5. Step 5: Solve for x
    x = 342,353,734.71/19,830.77
  6. Step 6: Final answer
    x = 17,263.76

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1.5x scale

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.