Home / 28,417.74-39,218.62-16,480.98

Finding the Fourth Proportional to 28,417.74, 39,218.62 and 16,480.98

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Solution

The fourth proportional to 28,417.74, 39,218.62 and 16,480.98 is: 22,744.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,417.74 : 39,218.62 = 16,480.98 : x
  2. Step 2: Convert to fraction form
    28,417.74/39,218.62 = 16,480.98/x
  3. Step 3: Cross multiply
    28,417.74x = 39,218.62 × 16,480.98
  4. Step 4: Simplify right side
    28,417.74x = 646,361,291.85
  5. Step 5: Solve for x
    x = 646,361,291.85/28,417.74
  6. Step 6: Final answer
    x = 22,744.99

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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.