Home / 19,947.88-27,515.46-14,271.40

Finding the Fourth Proportional to 19,947.88, 27,515.46 and 14,271.40

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Solution

The fourth proportional to 19,947.88, 27,515.46 and 14,271.40 is: 19,685.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.88 : 27,515.46 = 14,271.40 : x
  2. Step 2: Convert to fraction form
    19,947.88/27,515.46 = 14,271.40/x
  3. Step 3: Cross multiply
    19,947.88x = 27,515.46 × 14,271.40
  4. Step 4: Simplify right side
    19,947.88x = 392,684,135.84
  5. Step 5: Solve for x
    x = 392,684,135.84/19,947.88
  6. Step 6: Final answer
    x = 19,685.51

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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.