Home / 28,033.86-38,686.44-15,287.02

Finding the Fourth Proportional to 28,033.86, 38,686.44 and 15,287.02

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Solution

The fourth proportional to 28,033.86, 38,686.44 and 15,287.02 is: 21,095.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033.86 : 38,686.44 = 15,287.02 : x
  2. Step 2: Convert to fraction form
    28,033.86/38,686.44 = 15,287.02/x
  3. Step 3: Cross multiply
    28,033.86x = 38,686.44 × 15,287.02
  4. Step 4: Simplify right side
    28,033.86x = 591,400,382.01
  5. Step 5: Solve for x
    x = 591,400,382.01/28,033.86
  6. Step 6: Final answer
    x = 21,095.93

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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.