Home / 42,585.48-63,850.41-20,398.14

Finding the Fourth Proportional to 42,585.48, 63,850.41 and 20,398.14

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Solution

The fourth proportional to 42,585.48, 63,850.41 and 20,398.14 is: 30,583.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,585.48 : 63,850.41 = 20,398.14 : x
  2. Step 2: Convert to fraction form
    42,585.48/63,850.41 = 20,398.14/x
  3. Step 3: Cross multiply
    42,585.48x = 63,850.41 × 20,398.14
  4. Step 4: Simplify right side
    42,585.48x = 1,302,429,602.24
  5. Step 5: Solve for x
    x = 1,302,429,602.24/42,585.48
  6. Step 6: Final answer
    x = 30,583.89

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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.