Home / 19,827.20-29,731.38-11,509.77

Finding the Fourth Proportional to 19,827.20, 29,731.38 and 11,509.77

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Solution

The fourth proportional to 19,827.20, 29,731.38 and 11,509.77 is: 17,259.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,827.20 : 29,731.38 = 11,509.77 : x
  2. Step 2: Convert to fraction form
    19,827.20/29,731.38 = 11,509.77/x
  3. Step 3: Cross multiply
    19,827.20x = 29,731.38 × 11,509.77
  4. Step 4: Simplify right side
    19,827.20x = 342,201,345.58
  5. Step 5: Solve for x
    x = 342,201,345.58/19,827.20
  6. Step 6: Final answer
    x = 17,259.19

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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.