Home / 42,582.48-63,845.91-20,395.14

Finding the Fourth Proportional to 42,582.48, 63,845.91 and 20,395.14

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Solution

The fourth proportional to 42,582.48, 63,845.91 and 20,395.14 is: 30,579.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,582.48 : 63,845.91 = 20,395.14 : x
  2. Step 2: Convert to fraction form
    42,582.48/63,845.91 = 20,395.14/x
  3. Step 3: Cross multiply
    42,582.48x = 63,845.91 × 20,395.14
  4. Step 4: Simplify right side
    42,582.48x = 1,302,146,272.88
  5. Step 5: Solve for x
    x = 1,302,146,272.88/42,582.48
  6. Step 6: Final answer
    x = 30,579.39

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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.