Home / 20,904.78-31,353.93-6,110.22

Finding the Fourth Proportional to 20,904.78, 31,353.93 and 6,110.22

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Solution

The fourth proportional to 20,904.78, 31,353.93 and 6,110.22 is: 9,164.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.78 : 31,353.93 = 6,110.22 : x
  2. Step 2: Convert to fraction form
    20,904.78/31,353.93 = 6,110.22/x
  3. Step 3: Cross multiply
    20,904.78x = 31,353.93 × 6,110.22
  4. Step 4: Simplify right side
    20,904.78x = 191,579,410.16
  5. Step 5: Solve for x
    x = 191,579,410.16/20,904.78
  6. Step 6: Final answer
    x = 9,164.38

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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.