Home / 28,410.04-39,205.13-15,662.93

Finding the Fourth Proportional to 28,410.04, 39,205.13 and 15,662.93

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Solution

The fourth proportional to 28,410.04, 39,205.13 and 15,662.93 is: 21,614.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.04 : 39,205.13 = 15,662.93 : x
  2. Step 2: Convert to fraction form
    28,410.04/39,205.13 = 15,662.93/x
  3. Step 3: Cross multiply
    28,410.04x = 39,205.13 × 15,662.93
  4. Step 4: Simplify right side
    28,410.04x = 614,067,206.83
  5. Step 5: Solve for x
    x = 614,067,206.83/28,410.04
  6. Step 6: Final answer
    x = 21,614.44

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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.