Home / 28,829.12-43,282.56-13,251.20

Finding the Fourth Proportional to 28,829.12, 43,282.56 and 13,251.20

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Solution

The fourth proportional to 28,829.12, 43,282.56 and 13,251.20 is: 19,894.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.12 : 43,282.56 = 13,251.20 : x
  2. Step 2: Convert to fraction form
    28,829.12/43,282.56 = 13,251.20/x
  3. Step 3: Cross multiply
    28,829.12x = 43,282.56 × 13,251.20
  4. Step 4: Simplify right side
    28,829.12x = 573,545,859.07
  5. Step 5: Solve for x
    x = 573,545,859.07/28,829.12
  6. Step 6: Final answer
    x = 19,894.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.