Home / 28,859.32-43,303.38-13,287.88

Finding the Fourth Proportional to 28,859.32, 43,303.38 and 13,287.88

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Solution

The fourth proportional to 28,859.32, 43,303.38 and 13,287.88 is: 19,938.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,859.32 : 43,303.38 = 13,287.88 : x
  2. Step 2: Convert to fraction form
    28,859.32/43,303.38 = 13,287.88/x
  3. Step 3: Cross multiply
    28,859.32x = 43,303.38 × 13,287.88
  4. Step 4: Simplify right side
    28,859.32x = 575,410,117.03
  5. Step 5: Solve for x
    x = 575,410,117.03/28,859.32
  6. Step 6: Final answer
    x = 19,938.45

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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.