Home / 21,303.08-31,956.24-7,258.76

Finding the Fourth Proportional to 21,303.08, 31,956.24 and 7,258.76

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Solution

The fourth proportional to 21,303.08, 31,956.24 and 7,258.76 is: 10,888.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303.08 : 31,956.24 = 7,258.76 : x
  2. Step 2: Convert to fraction form
    21,303.08/31,956.24 = 7,258.76/x
  3. Step 3: Cross multiply
    21,303.08x = 31,956.24 × 7,258.76
  4. Step 4: Simplify right side
    21,303.08x = 231,962,676.66
  5. Step 5: Solve for x
    x = 231,962,676.66/21,303.08
  6. Step 6: Final answer
    x = 10,888.69

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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.