Home / 39,905.64-55,071.63-22,000.86

Finding the Fourth Proportional to 39,905.64, 55,071.63 and 22,000.86

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Solution

The fourth proportional to 39,905.64, 55,071.63 and 22,000.86 is: 30,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.64 : 55,071.63 = 22,000.86 : x
  2. Step 2: Convert to fraction form
    39,905.64/55,071.63 = 22,000.86/x
  3. Step 3: Cross multiply
    39,905.64x = 55,071.63 × 22,000.86
  4. Step 4: Simplify right side
    39,905.64x = 1,211,623,221.60
  5. Step 5: Solve for x
    x = 1,211,623,221.60/39,905.64
  6. Step 6: Final answer
    x = 30,362.20

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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.