Home / 34,919.40-48,192.80-20,772.12

Finding the Fourth Proportional to 34,919.40, 48,192.80 and 20,772.12

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Solution

The fourth proportional to 34,919.40, 48,192.80 and 20,772.12 is: 28,667.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,919.40 : 48,192.80 = 20,772.12 : x
  2. Step 2: Convert to fraction form
    34,919.40/48,192.80 = 20,772.12/x
  3. Step 3: Cross multiply
    34,919.40x = 48,192.80 × 20,772.12
  4. Step 4: Simplify right side
    34,919.40x = 1,001,066,624.74
  5. Step 5: Solve for x
    x = 1,001,066,624.74/34,919.40
  6. Step 6: Final answer
    x = 28,667.92

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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.