Home / 50,021.90-75,005.14-20,460.49

Finding the Fourth Proportional to 50,021.90, 75,005.14 and 20,460.49

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Solution

The fourth proportional to 50,021.90, 75,005.14 and 20,460.49 is: 30,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,021.90 : 75,005.14 = 20,460.49 : x
  2. Step 2: Convert to fraction form
    50,021.90/75,005.14 = 20,460.49/x
  3. Step 3: Cross multiply
    50,021.90x = 75,005.14 × 20,460.49
  4. Step 4: Simplify right side
    50,021.90x = 1,534,641,916.92
  5. Step 5: Solve for x
    x = 1,534,641,916.92/50,021.90
  6. Step 6: Final answer
    x = 30,679.40

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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.