Home / 28,735.80-39,655.02-16,160.55

Finding the Fourth Proportional to 28,735.80, 39,655.02 and 16,160.55

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Solution

The fourth proportional to 28,735.80, 39,655.02 and 16,160.55 is: 22,301.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,735.80 : 39,655.02 = 16,160.55 : x
  2. Step 2: Convert to fraction form
    28,735.80/39,655.02 = 16,160.55/x
  3. Step 3: Cross multiply
    28,735.80x = 39,655.02 × 16,160.55
  4. Step 4: Simplify right side
    28,735.80x = 640,846,754.45
  5. Step 5: Solve for x
    x = 640,846,754.45/28,735.80
  6. Step 6: Final answer
    x = 22,301.34

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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.