Home / 58,021.20-87,033-18,578.20

Finding the Fourth Proportional to 58,021.20, 87,033 and 18,578.20

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Solution

The fourth proportional to 58,021.20, 87,033 and 18,578.20 is: 27,867.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,021.20 : 87,033 = 18,578.20 : x
  2. Step 2: Convert to fraction form
    58,021.20/87,033 = 18,578.20/x
  3. Step 3: Cross multiply
    58,021.20x = 87,033 × 18,578.20
  4. Step 4: Simplify right side
    58,021.20x = 1,616,916,480.60
  5. Step 5: Solve for x
    x = 1,616,916,480.60/58,021.20
  6. Step 6: Final answer
    x = 27,867.68

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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.