Home / 28,090.18-38,780.01-19,150.82

Finding the Fourth Proportional to 28,090.18, 38,780.01 and 19,150.82

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Solution

The fourth proportional to 28,090.18, 38,780.01 and 19,150.82 is: 26,438.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.18 : 38,780.01 = 19,150.82 : x
  2. Step 2: Convert to fraction form
    28,090.18/38,780.01 = 19,150.82/x
  3. Step 3: Cross multiply
    28,090.18x = 38,780.01 × 19,150.82
  4. Step 4: Simplify right side
    28,090.18x = 742,668,797.21
  5. Step 5: Solve for x
    x = 742,668,797.21/28,090.18
  6. Step 6: Final answer
    x = 26,438.74

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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.