Home / 28,007.14-38,649.76-15,261.02

Finding the Fourth Proportional to 28,007.14, 38,649.76 and 15,261.02

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Solution

The fourth proportional to 28,007.14, 38,649.76 and 15,261.02 is: 21,060.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.14 : 38,649.76 = 15,261.02 : x
  2. Step 2: Convert to fraction form
    28,007.14/38,649.76 = 15,261.02/x
  3. Step 3: Cross multiply
    28,007.14x = 38,649.76 × 15,261.02
  4. Step 4: Simplify right side
    28,007.14x = 589,834,760.36
  5. Step 5: Solve for x
    x = 589,834,760.36/28,007.14
  6. Step 6: Final answer
    x = 21,060.16

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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.