Home / 21,730.57-29,988.18-11,794.57

Finding the Fourth Proportional to 21,730.57, 29,988.18 and 11,794.57

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Solution

The fourth proportional to 21,730.57, 29,988.18 and 11,794.57 is: 16,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730.57 : 29,988.18 = 11,794.57 : x
  2. Step 2: Convert to fraction form
    21,730.57/29,988.18 = 11,794.57/x
  3. Step 3: Cross multiply
    21,730.57x = 29,988.18 × 11,794.57
  4. Step 4: Simplify right side
    21,730.57x = 353,697,688.18
  5. Step 5: Solve for x
    x = 353,697,688.18/21,730.57
  6. Step 6: Final answer
    x = 16,276.50

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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.