Home / 28,243.76-42,128.57-25,948.67

Finding the Fourth Proportional to 28,243.76, 42,128.57 and 25,948.67

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Solution

The fourth proportional to 28,243.76, 42,128.57 and 25,948.67 is: 38,705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243.76 : 42,128.57 = 25,948.67 : x
  2. Step 2: Convert to fraction form
    28,243.76/42,128.57 = 25,948.67/x
  3. Step 3: Cross multiply
    28,243.76x = 42,128.57 × 25,948.67
  4. Step 4: Simplify right side
    28,243.76x = 1,093,180,020.12
  5. Step 5: Solve for x
    x = 1,093,180,020.12/28,243.76
  6. Step 6: Final answer
    x = 38,705.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.