Home / 28,110.24-38,802.24-16,938.72

Finding the Fourth Proportional to 28,110.24, 38,802.24 and 16,938.72

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Solution

The fourth proportional to 28,110.24, 38,802.24 and 16,938.72 is: 23,381.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.24 : 38,802.24 = 16,938.72 : x
  2. Step 2: Convert to fraction form
    28,110.24/38,802.24 = 16,938.72/x
  3. Step 3: Cross multiply
    28,110.24x = 38,802.24 × 16,938.72
  4. Step 4: Simplify right side
    28,110.24x = 657,260,278.73
  5. Step 5: Solve for x
    x = 657,260,278.73/28,110.24
  6. Step 6: Final answer
    x = 23,381.52

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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.