Home / 28,178.29-38,883.72-16,242.45

Finding the Fourth Proportional to 28,178.29, 38,883.72 and 16,242.45

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Solution

The fourth proportional to 28,178.29, 38,883.72 and 16,242.45 is: 22,413.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,178.29 : 38,883.72 = 16,242.45 : x
  2. Step 2: Convert to fraction form
    28,178.29/38,883.72 = 16,242.45/x
  3. Step 3: Cross multiply
    28,178.29x = 38,883.72 × 16,242.45
  4. Step 4: Simplify right side
    28,178.29x = 631,566,877.91
  5. Step 5: Solve for x
    x = 631,566,877.91/28,178.29
  6. Step 6: Final answer
    x = 22,413.24

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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.