Home / 28,498.05-39,326.50-15,922.80

Finding the Fourth Proportional to 28,498.05, 39,326.50 and 15,922.80

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Solution

The fourth proportional to 28,498.05, 39,326.50 and 15,922.80 is: 21,973.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.05 : 39,326.50 = 15,922.80 : x
  2. Step 2: Convert to fraction form
    28,498.05/39,326.50 = 15,922.80/x
  3. Step 3: Cross multiply
    28,498.05x = 39,326.50 × 15,922.80
  4. Step 4: Simplify right side
    28,498.05x = 626,187,757.76
  5. Step 5: Solve for x
    x = 626,187,757.76/28,498.05
  6. Step 6: Final answer
    x = 21,973.01

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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.