Home / 19,828.20-29,732.88-11,510.77

Finding the Fourth Proportional to 19,828.20, 29,732.88 and 11,510.77

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Solution

The fourth proportional to 19,828.20, 29,732.88 and 11,510.77 is: 17,260.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.20 : 29,732.88 = 11,510.77 : x
  2. Step 2: Convert to fraction form
    19,828.20/29,732.88 = 11,510.77/x
  3. Step 3: Cross multiply
    19,828.20x = 29,732.88 × 11,510.77
  4. Step 4: Simplify right side
    19,828.20x = 342,248,343.12
  5. Step 5: Solve for x
    x = 342,248,343.12/19,828.20
  6. Step 6: Final answer
    x = 17,260.69

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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.