Home / 19,908.64-27,440.40-13,610.08

Finding the Fourth Proportional to 19,908.64, 27,440.40 and 13,610.08

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Solution

The fourth proportional to 19,908.64, 27,440.40 and 13,610.08 is: 18,758.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,908.64 : 27,440.40 = 13,610.08 : x
  2. Step 2: Convert to fraction form
    19,908.64/27,440.40 = 13,610.08/x
  3. Step 3: Cross multiply
    19,908.64x = 27,440.40 × 13,610.08
  4. Step 4: Simplify right side
    19,908.64x = 373,466,039.23
  5. Step 5: Solve for x
    x = 373,466,039.23/19,908.64
  6. Step 6: Final answer
    x = 18,758.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.