Home / 28,088.24-38,759.80-15,512

Finding the Fourth Proportional to 28,088.24, 38,759.80 and 15,512

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Solution

The fourth proportional to 28,088.24, 38,759.80 and 15,512 is: 21,405.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088.24 : 38,759.80 = 15,512 : x
  2. Step 2: Convert to fraction form
    28,088.24/38,759.80 = 15,512/x
  3. Step 3: Cross multiply
    28,088.24x = 38,759.80 × 15,512
  4. Step 4: Simplify right side
    28,088.24x = 601,242,017.60
  5. Step 5: Solve for x
    x = 601,242,017.60/28,088.24
  6. Step 6: Final answer
    x = 21,405.47

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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.