Home / 28,277.76-42,132.48-26,688

Finding the Fourth Proportional to 28,277.76, 42,132.48 and 26,688

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Solution

The fourth proportional to 28,277.76, 42,132.48 and 26,688 is: 39,763.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.76 : 42,132.48 = 26,688 : x
  2. Step 2: Convert to fraction form
    28,277.76/42,132.48 = 26,688/x
  3. Step 3: Cross multiply
    28,277.76x = 42,132.48 × 26,688
  4. Step 4: Simplify right side
    28,277.76x = 1,124,431,626.24
  5. Step 5: Solve for x
    x = 1,124,431,626.24/28,277.76
  6. Step 6: Final answer
    x = 39,763.82

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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.