Home / 35,567.90-53,315.40-20,769.20

Finding the Fourth Proportional to 35,567.90, 53,315.40 and 20,769.20

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Solution

The fourth proportional to 35,567.90, 53,315.40 and 20,769.20 is: 31,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,567.90 : 53,315.40 = 20,769.20 : x
  2. Step 2: Convert to fraction form
    35,567.90/53,315.40 = 20,769.20/x
  3. Step 3: Cross multiply
    35,567.90x = 53,315.40 × 20,769.20
  4. Step 4: Simplify right side
    35,567.90x = 1,107,318,205.68
  5. Step 5: Solve for x
    x = 1,107,318,205.68/35,567.90
  6. Step 6: Final answer
    x = 31,132.52

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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.