Home / 28,292.24-39,045-15,716.96

Finding the Fourth Proportional to 28,292.24, 39,045 and 15,716.96

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Solution

The fourth proportional to 28,292.24, 39,045 and 15,716.96 is: 21,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.24 : 39,045 = 15,716.96 : x
  2. Step 2: Convert to fraction form
    28,292.24/39,045 = 15,716.96/x
  3. Step 3: Cross multiply
    28,292.24x = 39,045 × 15,716.96
  4. Step 4: Simplify right side
    28,292.24x = 613,668,703.20
  5. Step 5: Solve for x
    x = 613,668,703.20/28,292.24
  6. Step 6: Final answer
    x = 21,690.35

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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.