Home / 19,790.39-29,685.45-4,999.30

Finding the Fourth Proportional to 19,790.39, 29,685.45 and 4,999.30

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Solution

The fourth proportional to 19,790.39, 29,685.45 and 4,999.30 is: 7,498.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.39 : 29,685.45 = 4,999.30 : x
  2. Step 2: Convert to fraction form
    19,790.39/29,685.45 = 4,999.30/x
  3. Step 3: Cross multiply
    19,790.39x = 29,685.45 × 4,999.30
  4. Step 4: Simplify right side
    19,790.39x = 148,406,544.95
  5. Step 5: Solve for x
    x = 148,406,544.95/19,790.39
  6. Step 6: Final answer
    x = 7,498.92

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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.