Home / 28,588.79-39,456.45-16,655.87

Finding the Fourth Proportional to 28,588.79, 39,456.45 and 16,655.87

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Solution

The fourth proportional to 28,588.79, 39,456.45 and 16,655.87 is: 22,987.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588.79 : 39,456.45 = 16,655.87 : x
  2. Step 2: Convert to fraction form
    28,588.79/39,456.45 = 16,655.87/x
  3. Step 3: Cross multiply
    28,588.79x = 39,456.45 × 16,655.87
  4. Step 4: Simplify right side
    28,588.79x = 657,181,304.58
  5. Step 5: Solve for x
    x = 657,181,304.58/28,588.79
  6. Step 6: Final answer
    x = 22,987.38

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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.