Home / 28,409.76-42,279.21-27,463.71

Finding the Fourth Proportional to 28,409.76, 42,279.21 and 27,463.71

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Solution

The fourth proportional to 28,409.76, 42,279.21 and 27,463.71 is: 40,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.76 : 42,279.21 = 27,463.71 : x
  2. Step 2: Convert to fraction form
    28,409.76/42,279.21 = 27,463.71/x
  3. Step 3: Cross multiply
    28,409.76x = 42,279.21 × 27,463.71
  4. Step 4: Simplify right side
    28,409.76x = 1,161,143,999.51
  5. Step 5: Solve for x
    x = 1,161,143,999.51/28,409.76
  6. Step 6: Final answer
    x = 40,871.30

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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.