Home / 28,588.80-39,456.48-16,655.88

Finding the Fourth Proportional to 28,588.80, 39,456.48 and 16,655.88

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Solution

The fourth proportional to 28,588.80, 39,456.48 and 16,655.88 is: 22,987.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588.80 : 39,456.48 = 16,655.88 : x
  2. Step 2: Convert to fraction form
    28,588.80/39,456.48 = 16,655.88/x
  3. Step 3: Cross multiply
    28,588.80x = 39,456.48 × 16,655.88
  4. Step 4: Simplify right side
    28,588.80x = 657,182,396.10
  5. Step 5: Solve for x
    x = 657,182,396.10/28,588.80
  6. Step 6: Final answer
    x = 22,987.41

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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.