Home / 20,336.40-30,501.70-7,862.29

Finding the Fourth Proportional to 20,336.40, 30,501.70 and 7,862.29

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Solution

The fourth proportional to 20,336.40, 30,501.70 and 7,862.29 is: 11,792.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.40 : 30,501.70 = 7,862.29 : x
  2. Step 2: Convert to fraction form
    20,336.40/30,501.70 = 7,862.29/x
  3. Step 3: Cross multiply
    20,336.40x = 30,501.70 × 7,862.29
  4. Step 4: Simplify right side
    20,336.40x = 239,813,114.98
  5. Step 5: Solve for x
    x = 239,813,114.98/20,336.40
  6. Step 6: Final answer
    x = 11,792.31

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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.