Home / 20,567.74-30,851.61-4,985.37

Finding the Fourth Proportional to 20,567.74, 30,851.61 and 4,985.37

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Solution

The fourth proportional to 20,567.74, 30,851.61 and 4,985.37 is: 7,478.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.74 : 30,851.61 = 4,985.37 : x
  2. Step 2: Convert to fraction form
    20,567.74/30,851.61 = 4,985.37/x
  3. Step 3: Cross multiply
    20,567.74x = 30,851.61 × 4,985.37
  4. Step 4: Simplify right side
    20,567.74x = 153,806,627.54
  5. Step 5: Solve for x
    x = 153,806,627.54/20,567.74
  6. Step 6: Final answer
    x = 7,478.05

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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.