Home / 28,464.40-39,273.55-18,918.15

Finding the Fourth Proportional to 28,464.40, 39,273.55 and 18,918.15

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Solution

The fourth proportional to 28,464.40, 39,273.55 and 18,918.15 is: 26,102.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.40 : 39,273.55 = 18,918.15 : x
  2. Step 2: Convert to fraction form
    28,464.40/39,273.55 = 18,918.15/x
  3. Step 3: Cross multiply
    28,464.40x = 39,273.55 × 18,918.15
  4. Step 4: Simplify right side
    28,464.40x = 742,982,909.93
  5. Step 5: Solve for x
    x = 742,982,909.93/28,464.40
  6. Step 6: Final answer
    x = 26,102.18

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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.