Home / 40,047.54-55,278.72-28,113.81

Finding the Fourth Proportional to 40,047.54, 55,278.72 and 28,113.81

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Solution

The fourth proportional to 40,047.54, 55,278.72 and 28,113.81 is: 38,806.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,047.54 : 55,278.72 = 28,113.81 : x
  2. Step 2: Convert to fraction form
    40,047.54/55,278.72 = 28,113.81/x
  3. Step 3: Cross multiply
    40,047.54x = 55,278.72 × 28,113.81
  4. Step 4: Simplify right side
    40,047.54x = 1,554,095,431.12
  5. Step 5: Solve for x
    x = 1,554,095,431.12/40,047.54
  6. Step 6: Final answer
    x = 38,806.26

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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.