Home / 28,169.78-38,875.75-16,234.22

Finding the Fourth Proportional to 28,169.78, 38,875.75 and 16,234.22

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Solution

The fourth proportional to 28,169.78, 38,875.75 and 16,234.22 is: 22,404.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169.78 : 38,875.75 = 16,234.22 : x
  2. Step 2: Convert to fraction form
    28,169.78/38,875.75 = 16,234.22/x
  3. Step 3: Cross multiply
    28,169.78x = 38,875.75 × 16,234.22
  4. Step 4: Simplify right side
    28,169.78x = 631,117,534.77
  5. Step 5: Solve for x
    x = 631,117,534.77/28,169.78
  6. Step 6: Final answer
    x = 22,404.07

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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.