Home / 28,440.93-39,250.96-15,695.31

Finding the Fourth Proportional to 28,440.93, 39,250.96 and 15,695.31

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Solution

The fourth proportional to 28,440.93, 39,250.96 and 15,695.31 is: 21,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,440.93 : 39,250.96 = 15,695.31 : x
  2. Step 2: Convert to fraction form
    28,440.93/39,250.96 = 15,695.31/x
  3. Step 3: Cross multiply
    28,440.93x = 39,250.96 × 15,695.31
  4. Step 4: Simplify right side
    28,440.93x = 616,055,985.00
  5. Step 5: Solve for x
    x = 616,055,985.00/28,440.93
  6. Step 6: Final answer
    x = 21,660.89

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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.