Home / 28,007.48-38,649.86-15,260.82

Finding the Fourth Proportional to 28,007.48, 38,649.86 and 15,260.82

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Solution

The fourth proportional to 28,007.48, 38,649.86 and 15,260.82 is: 21,059.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.48 : 38,649.86 = 15,260.82 : x
  2. Step 2: Convert to fraction form
    28,007.48/38,649.86 = 15,260.82/x
  3. Step 3: Cross multiply
    28,007.48x = 38,649.86 × 15,260.82
  4. Step 4: Simplify right side
    28,007.48x = 589,828,286.93
  5. Step 5: Solve for x
    x = 589,828,286.93/28,007.48
  6. Step 6: Final answer
    x = 21,059.67

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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.