Home / 28,710.15-39,624.91-18,498.31

Finding the Fourth Proportional to 28,710.15, 39,624.91 and 18,498.31

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Solution

The fourth proportional to 28,710.15, 39,624.91 and 18,498.31 is: 25,530.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,710.15 : 39,624.91 = 18,498.31 : x
  2. Step 2: Convert to fraction form
    28,710.15/39,624.91 = 18,498.31/x
  3. Step 3: Cross multiply
    28,710.15x = 39,624.91 × 18,498.31
  4. Step 4: Simplify right side
    28,710.15x = 732,993,827.65
  5. Step 5: Solve for x
    x = 732,993,827.65/28,710.15
  6. Step 6: Final answer
    x = 25,530.83

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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.