Home / 28,754.78-39,681.19-16,179.50

Finding the Fourth Proportional to 28,754.78, 39,681.19 and 16,179.50

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Solution

The fourth proportional to 28,754.78, 39,681.19 and 16,179.50 is: 22,327.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.78 : 39,681.19 = 16,179.50 : x
  2. Step 2: Convert to fraction form
    28,754.78/39,681.19 = 16,179.50/x
  3. Step 3: Cross multiply
    28,754.78x = 39,681.19 × 16,179.50
  4. Step 4: Simplify right side
    28,754.78x = 642,021,813.61
  5. Step 5: Solve for x
    x = 642,021,813.61/28,754.78
  6. Step 6: Final answer
    x = 22,327.48

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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.