Home / 21,259.64-31,889.46-9,559.16

Finding the Fourth Proportional to 21,259.64, 31,889.46 and 9,559.16

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Solution

The fourth proportional to 21,259.64, 31,889.46 and 9,559.16 is: 14,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259.64 : 31,889.46 = 9,559.16 : x
  2. Step 2: Convert to fraction form
    21,259.64/31,889.46 = 9,559.16/x
  3. Step 3: Cross multiply
    21,259.64x = 31,889.46 × 9,559.16
  4. Step 4: Simplify right side
    21,259.64x = 304,836,450.45
  5. Step 5: Solve for x
    x = 304,836,450.45/21,259.64
  6. Step 6: Final answer
    x = 14,338.74

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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.