Home / 28,014-38,661.75-15,441.18

Finding the Fourth Proportional to 28,014, 38,661.75 and 15,441.18

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Solution

The fourth proportional to 28,014, 38,661.75 and 15,441.18 is: 21,310.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014 : 38,661.75 = 15,441.18 : x
  2. Step 2: Convert to fraction form
    28,014/38,661.75 = 15,441.18/x
  3. Step 3: Cross multiply
    28,014x = 38,661.75 × 15,441.18
  4. Step 4: Simplify right side
    28,014x = 596,983,040.87
  5. Step 5: Solve for x
    x = 596,983,040.87/28,014
  6. Step 6: Final answer
    x = 21,310.17

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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.