Home / 21,088.32-31,606.56-11,227.20

Finding the Fourth Proportional to 21,088.32, 31,606.56 and 11,227.20

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Solution

The fourth proportional to 21,088.32, 31,606.56 and 11,227.20 is: 16,827.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088.32 : 31,606.56 = 11,227.20 : x
  2. Step 2: Convert to fraction form
    21,088.32/31,606.56 = 11,227.20/x
  3. Step 3: Cross multiply
    21,088.32x = 31,606.56 × 11,227.20
  4. Step 4: Simplify right side
    21,088.32x = 354,853,170.43
  5. Step 5: Solve for x
    x = 354,853,170.43/21,088.32
  6. Step 6: Final answer
    x = 16,827.00

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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.