Home / 19,797.28-27,274.12-13,818.40

Finding the Fourth Proportional to 19,797.28, 27,274.12 and 13,818.40

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Solution

The fourth proportional to 19,797.28, 27,274.12 and 13,818.40 is: 19,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,797.28 : 27,274.12 = 13,818.40 : x
  2. Step 2: Convert to fraction form
    19,797.28/27,274.12 = 13,818.40/x
  3. Step 3: Cross multiply
    19,797.28x = 27,274.12 × 13,818.40
  4. Step 4: Simplify right side
    19,797.28x = 376,884,699.81
  5. Step 5: Solve for x
    x = 376,884,699.81/19,797.28
  6. Step 6: Final answer
    x = 19,037.20

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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.