Home / 36,985.89-51,041.31-20,218.89

Finding the Fourth Proportional to 36,985.89, 51,041.31 and 20,218.89

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Solution

The fourth proportional to 36,985.89, 51,041.31 and 20,218.89 is: 27,902.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,985.89 : 51,041.31 = 20,218.89 : x
  2. Step 2: Convert to fraction form
    36,985.89/51,041.31 = 20,218.89/x
  3. Step 3: Cross multiply
    36,985.89x = 51,041.31 × 20,218.89
  4. Step 4: Simplify right side
    36,985.89x = 1,031,998,632.35
  5. Step 5: Solve for x
    x = 1,031,998,632.35/36,985.89
  6. Step 6: Final answer
    x = 27,902.50

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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.