Home / 14,360.82-21,400.28-13,891.02

Finding the Fourth Proportional to 14,360.82, 21,400.28 and 13,891.02

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Solution

The fourth proportional to 14,360.82, 21,400.28 and 13,891.02 is: 20,700.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,360.82 : 21,400.28 = 13,891.02 : x
  2. Step 2: Convert to fraction form
    14,360.82/21,400.28 = 13,891.02/x
  3. Step 3: Cross multiply
    14,360.82x = 21,400.28 × 13,891.02
  4. Step 4: Simplify right side
    14,360.82x = 297,271,648.03
  5. Step 5: Solve for x
    x = 297,271,648.03/14,360.82
  6. Step 6: Final answer
    x = 20,700.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.