Home / 28,346.85-39,110.54-18,281.06

Finding the Fourth Proportional to 28,346.85, 39,110.54 and 18,281.06

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Solution

The fourth proportional to 28,346.85, 39,110.54 and 18,281.06 is: 25,222.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,346.85 : 39,110.54 = 18,281.06 : x
  2. Step 2: Convert to fraction form
    28,346.85/39,110.54 = 18,281.06/x
  3. Step 3: Cross multiply
    28,346.85x = 39,110.54 × 18,281.06
  4. Step 4: Simplify right side
    28,346.85x = 714,981,841.41
  5. Step 5: Solve for x
    x = 714,981,841.41/28,346.85
  6. Step 6: Final answer
    x = 25,222.62

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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.