Home / 21,258.64-31,887.96-9,558.16

Finding the Fourth Proportional to 21,258.64, 31,887.96 and 9,558.16

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Solution

The fourth proportional to 21,258.64, 31,887.96 and 9,558.16 is: 14,337.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.64 : 31,887.96 = 9,558.16 : x
  2. Step 2: Convert to fraction form
    21,258.64/31,887.96 = 9,558.16/x
  3. Step 3: Cross multiply
    21,258.64x = 31,887.96 × 9,558.16
  4. Step 4: Simplify right side
    21,258.64x = 304,790,223.75
  5. Step 5: Solve for x
    x = 304,790,223.75/21,258.64
  6. Step 6: Final answer
    x = 14,337.24

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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.