Home / 28,210.26-38,929.31-15,463.16

Finding the Fourth Proportional to 28,210.26, 38,929.31 and 15,463.16

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Solution

The fourth proportional to 28,210.26, 38,929.31 and 15,463.16 is: 21,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,210.26 : 38,929.31 = 15,463.16 : x
  2. Step 2: Convert to fraction form
    28,210.26/38,929.31 = 15,463.16/x
  3. Step 3: Cross multiply
    28,210.26x = 38,929.31 × 15,463.16
  4. Step 4: Simplify right side
    28,210.26x = 601,970,190.72
  5. Step 5: Solve for x
    x = 601,970,190.72/28,210.26
  6. Step 6: Final answer
    x = 21,338.70

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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.