Home / 19,787.67-29,678.76-4,995.68

Finding the Fourth Proportional to 19,787.67, 29,678.76 and 4,995.68

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Solution

The fourth proportional to 19,787.67, 29,678.76 and 4,995.68 is: 7,492.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.67 : 29,678.76 = 4,995.68 : x
  2. Step 2: Convert to fraction form
    19,787.67/29,678.76 = 4,995.68/x
  3. Step 3: Cross multiply
    19,787.67x = 29,678.76 × 4,995.68
  4. Step 4: Simplify right side
    19,787.67x = 148,265,439.36
  5. Step 5: Solve for x
    x = 148,265,439.36/19,787.67
  6. Step 6: Final answer
    x = 7,492.82

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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.