Home / 28,007.80-38,650.27-15,261.09

Finding the Fourth Proportional to 28,007.80, 38,650.27 and 15,261.09

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Solution

The fourth proportional to 28,007.80, 38,650.27 and 15,261.09 is: 21,060.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.80 : 38,650.27 = 15,261.09 : x
  2. Step 2: Convert to fraction form
    28,007.80/38,650.27 = 15,261.09/x
  3. Step 3: Cross multiply
    28,007.80x = 38,650.27 × 15,261.09
  4. Step 4: Simplify right side
    28,007.80x = 589,845,094.52
  5. Step 5: Solve for x
    x = 589,845,094.52/28,007.80
  6. Step 6: Final answer
    x = 21,060.03

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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.