Home / 19,951.34-29,931.35-9,961.46

Finding the Fourth Proportional to 19,951.34, 29,931.35 and 9,961.46

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Solution

The fourth proportional to 19,951.34, 29,931.35 and 9,961.46 is: 14,944.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.34 : 29,931.35 = 9,961.46 : x
  2. Step 2: Convert to fraction form
    19,951.34/29,931.35 = 9,961.46/x
  3. Step 3: Cross multiply
    19,951.34x = 29,931.35 × 9,961.46
  4. Step 4: Simplify right side
    19,951.34x = 298,159,970.79
  5. Step 5: Solve for x
    x = 298,159,970.79/19,951.34
  6. Step 6: Final answer
    x = 14,944.36

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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.