Home / 39,673.60-59,438.40-18,851.20

Finding the Fourth Proportional to 39,673.60, 59,438.40 and 18,851.20

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Solution

The fourth proportional to 39,673.60, 59,438.40 and 18,851.20 is: 28,242.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,673.60 : 59,438.40 = 18,851.20 : x
  2. Step 2: Convert to fraction form
    39,673.60/59,438.40 = 18,851.20/x
  3. Step 3: Cross multiply
    39,673.60x = 59,438.40 × 18,851.20
  4. Step 4: Simplify right side
    39,673.60x = 1,120,485,166.08
  5. Step 5: Solve for x
    x = 1,120,485,166.08/39,673.60
  6. Step 6: Final answer
    x = 28,242.59

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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.