Home / 31,258.84-43,138.62-19,312.96

Finding the Fourth Proportional to 31,258.84, 43,138.62 and 19,312.96

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Solution

The fourth proportional to 31,258.84, 43,138.62 and 19,312.96 is: 26,652.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,258.84 : 43,138.62 = 19,312.96 : x
  2. Step 2: Convert to fraction form
    31,258.84/43,138.62 = 19,312.96/x
  3. Step 3: Cross multiply
    31,258.84x = 43,138.62 × 19,312.96
  4. Step 4: Simplify right side
    31,258.84x = 833,134,442.52
  5. Step 5: Solve for x
    x = 833,134,442.52/31,258.84
  6. Step 6: Final answer
    x = 26,652.76

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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.