Home / 28,782.90-39,713.49-16,207.65

Finding the Fourth Proportional to 28,782.90, 39,713.49 and 16,207.65

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Solution

The fourth proportional to 28,782.90, 39,713.49 and 16,207.65 is: 22,362.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.90 : 39,713.49 = 16,207.65 : x
  2. Step 2: Convert to fraction form
    28,782.90/39,713.49 = 16,207.65/x
  3. Step 3: Cross multiply
    28,782.90x = 39,713.49 × 16,207.65
  4. Step 4: Simplify right side
    28,782.90x = 643,662,346.20
  5. Step 5: Solve for x
    x = 643,662,346.20/28,782.90
  6. Step 6: Final answer
    x = 22,362.66

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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.