Home / 19,280.61-28,922.13-6,631.11

Finding the Fourth Proportional to 19,280.61, 28,922.13 and 6,631.11

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Solution

The fourth proportional to 19,280.61, 28,922.13 and 6,631.11 is: 9,947.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.61 : 28,922.13 = 6,631.11 : x
  2. Step 2: Convert to fraction form
    19,280.61/28,922.13 = 6,631.11/x
  3. Step 3: Cross multiply
    19,280.61x = 28,922.13 × 6,631.11
  4. Step 4: Simplify right side
    19,280.61x = 191,785,825.46
  5. Step 5: Solve for x
    x = 191,785,825.46/19,280.61
  6. Step 6: Final answer
    x = 9,947.08

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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.