Home / 21,746.05-30,009.04-12,794.13

Finding the Fourth Proportional to 21,746.05, 30,009.04 and 12,794.13

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Solution

The fourth proportional to 21,746.05, 30,009.04 and 12,794.13 is: 17,655.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,746.05 : 30,009.04 = 12,794.13 : x
  2. Step 2: Convert to fraction form
    21,746.05/30,009.04 = 12,794.13/x
  3. Step 3: Cross multiply
    21,746.05x = 30,009.04 × 12,794.13
  4. Step 4: Simplify right side
    21,746.05x = 383,939,558.94
  5. Step 5: Solve for x
    x = 383,939,558.94/21,746.05
  6. Step 6: Final answer
    x = 17,655.60

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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.