Home / 20,211.93-30,330.86-9,818.01

Finding the Fourth Proportional to 20,211.93, 30,330.86 and 9,818.01

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Solution

The fourth proportional to 20,211.93, 30,330.86 and 9,818.01 is: 14,733.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.93 : 30,330.86 = 9,818.01 : x
  2. Step 2: Convert to fraction form
    20,211.93/30,330.86 = 9,818.01/x
  3. Step 3: Cross multiply
    20,211.93x = 30,330.86 × 9,818.01
  4. Step 4: Simplify right side
    20,211.93x = 297,788,637.70
  5. Step 5: Solve for x
    x = 297,788,637.70/20,211.93
  6. Step 6: Final answer
    x = 14,733.31

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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.