Home / 21,210.76-31,830.36-9,524.80

Finding the Fourth Proportional to 21,210.76, 31,830.36 and 9,524.80

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Solution

The fourth proportional to 21,210.76, 31,830.36 and 9,524.80 is: 14,293.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210.76 : 31,830.36 = 9,524.80 : x
  2. Step 2: Convert to fraction form
    21,210.76/31,830.36 = 9,524.80/x
  3. Step 3: Cross multiply
    21,210.76x = 31,830.36 × 9,524.80
  4. Step 4: Simplify right side
    21,210.76x = 303,177,812.93
  5. Step 5: Solve for x
    x = 303,177,812.93/21,210.76
  6. Step 6: Final answer
    x = 14,293.59

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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.