Home / 21,097.62-29,117.61-12,712.50

Finding the Fourth Proportional to 21,097.62, 29,117.61 and 12,712.50

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Solution

The fourth proportional to 21,097.62, 29,117.61 and 12,712.50 is: 17,544.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097.62 : 29,117.61 = 12,712.50 : x
  2. Step 2: Convert to fraction form
    21,097.62/29,117.61 = 12,712.50/x
  3. Step 3: Cross multiply
    21,097.62x = 29,117.61 × 12,712.50
  4. Step 4: Simplify right side
    21,097.62x = 370,157,617.13
  5. Step 5: Solve for x
    x = 370,157,617.13/21,097.62
  6. Step 6: Final answer
    x = 17,544.99

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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.