Home / 19,929.84-29,885.04-11,612.76

Finding the Fourth Proportional to 19,929.84, 29,885.04 and 11,612.76

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Solution

The fourth proportional to 19,929.84, 29,885.04 and 11,612.76 is: 17,413.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.84 : 29,885.04 = 11,612.76 : x
  2. Step 2: Convert to fraction form
    19,929.84/29,885.04 = 11,612.76/x
  3. Step 3: Cross multiply
    19,929.84x = 29,885.04 × 11,612.76
  4. Step 4: Simplify right side
    19,929.84x = 347,047,797.11
  5. Step 5: Solve for x
    x = 347,047,797.11/19,929.84
  6. Step 6: Final answer
    x = 17,413.48

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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.