Home / 20,271.52-30,397.08-11,840.92

Finding the Fourth Proportional to 20,271.52, 30,397.08 and 11,840.92

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Solution

The fourth proportional to 20,271.52, 30,397.08 and 11,840.92 is: 17,755.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.52 : 30,397.08 = 11,840.92 : x
  2. Step 2: Convert to fraction form
    20,271.52/30,397.08 = 11,840.92/x
  3. Step 3: Cross multiply
    20,271.52x = 30,397.08 × 11,840.92
  4. Step 4: Simplify right side
    20,271.52x = 359,929,392.51
  5. Step 5: Solve for x
    x = 359,929,392.51/20,271.52
  6. Step 6: Final answer
    x = 17,755.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.