Home / 19,783.41-29,654.61-12,370.85

Finding the Fourth Proportional to 19,783.41, 29,654.61 and 12,370.85

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Solution

The fourth proportional to 19,783.41, 29,654.61 and 12,370.85 is: 18,543.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.41 : 29,654.61 = 12,370.85 : x
  2. Step 2: Convert to fraction form
    19,783.41/29,654.61 = 12,370.85/x
  3. Step 3: Cross multiply
    19,783.41x = 29,654.61 × 12,370.85
  4. Step 4: Simplify right side
    19,783.41x = 366,852,732.12
  5. Step 5: Solve for x
    x = 366,852,732.12/19,783.41
  6. Step 6: Final answer
    x = 18,543.45

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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.