Home / 39,683.20-59,427.60-18,882.40

Finding the Fourth Proportional to 39,683.20, 59,427.60 and 18,882.40

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Solution

The fourth proportional to 39,683.20, 59,427.60 and 18,882.40 is: 28,277.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,683.20 : 59,427.60 = 18,882.40 : x
  2. Step 2: Convert to fraction form
    39,683.20/59,427.60 = 18,882.40/x
  3. Step 3: Cross multiply
    39,683.20x = 59,427.60 × 18,882.40
  4. Step 4: Simplify right side
    39,683.20x = 1,122,135,714.24
  5. Step 5: Solve for x
    x = 1,122,135,714.24/39,683.20
  6. Step 6: Final answer
    x = 28,277.35

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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.