Home / 19,800.40-29,702.60-7,323.76

Finding the Fourth Proportional to 19,800.40, 29,702.60 and 7,323.76

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Solution

The fourth proportional to 19,800.40, 29,702.60 and 7,323.76 is: 10,986.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,800.40 : 29,702.60 = 7,323.76 : x
  2. Step 2: Convert to fraction form
    19,800.40/29,702.60 = 7,323.76/x
  3. Step 3: Cross multiply
    19,800.40x = 29,702.60 × 7,323.76
  4. Step 4: Simplify right side
    19,800.40x = 217,534,713.78
  5. Step 5: Solve for x
    x = 217,534,713.78/19,800.40
  6. Step 6: Final answer
    x = 10,986.38

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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.