Home / 21,220.16-31,833.84-9,541.58

Finding the Fourth Proportional to 21,220.16, 31,833.84 and 9,541.58

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Solution

The fourth proportional to 21,220.16, 31,833.84 and 9,541.58 is: 14,313.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,220.16 : 31,833.84 = 9,541.58 : x
  2. Step 2: Convert to fraction form
    21,220.16/31,833.84 = 9,541.58/x
  3. Step 3: Cross multiply
    21,220.16x = 31,833.84 × 9,541.58
  4. Step 4: Simplify right side
    21,220.16x = 303,745,131.07
  5. Step 5: Solve for x
    x = 303,745,131.07/21,220.16
  6. Step 6: Final answer
    x = 14,313.99

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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.