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Finding the Fourth Proportional to 19,859.54, 29,780.56 and 9,332.54

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Solution

The fourth proportional to 19,859.54, 29,780.56 and 9,332.54 is: 13,994.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.54 : 29,780.56 = 9,332.54 : x
  2. Step 2: Convert to fraction form
    19,859.54/29,780.56 = 9,332.54/x
  3. Step 3: Cross multiply
    19,859.54x = 29,780.56 × 9,332.54
  4. Step 4: Simplify right side
    19,859.54x = 277,928,267.42
  5. Step 5: Solve for x
    x = 277,928,267.42/19,859.54
  6. Step 6: Final answer
    x = 13,994.70

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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.