Home / 28,147.40-38,917.62-24,648.20

Finding the Fourth Proportional to 28,147.40, 38,917.62 and 24,648.20

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Solution

The fourth proportional to 28,147.40, 38,917.62 and 24,648.20 is: 34,079.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.40 : 38,917.62 = 24,648.20 : x
  2. Step 2: Convert to fraction form
    28,147.40/38,917.62 = 24,648.20/x
  3. Step 3: Cross multiply
    28,147.40x = 38,917.62 × 24,648.20
  4. Step 4: Simplify right side
    28,147.40x = 959,249,281.28
  5. Step 5: Solve for x
    x = 959,249,281.28/28,147.40
  6. Step 6: Final answer
    x = 34,079.50

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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.