Home / 28,736.34-39,655.89-16,160.82

Finding the Fourth Proportional to 28,736.34, 39,655.89 and 16,160.82

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Solution

The fourth proportional to 28,736.34, 39,655.89 and 16,160.82 is: 22,301.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.34 : 39,655.89 = 16,160.82 : x
  2. Step 2: Convert to fraction form
    28,736.34/39,655.89 = 16,160.82/x
  3. Step 3: Cross multiply
    28,736.34x = 39,655.89 × 16,160.82
  4. Step 4: Simplify right side
    28,736.34x = 640,871,700.23
  5. Step 5: Solve for x
    x = 640,871,700.23/28,736.34
  6. Step 6: Final answer
    x = 22,301.79

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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.