Home / 28,532.24-39,319-20,559.40

Finding the Fourth Proportional to 28,532.24, 39,319 and 20,559.40

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Solution

The fourth proportional to 28,532.24, 39,319 and 20,559.40 is: 28,331.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.24 : 39,319 = 20,559.40 : x
  2. Step 2: Convert to fraction form
    28,532.24/39,319 = 20,559.40/x
  3. Step 3: Cross multiply
    28,532.24x = 39,319 × 20,559.40
  4. Step 4: Simplify right side
    28,532.24x = 808,375,048.60
  5. Step 5: Solve for x
    x = 808,375,048.60/28,532.24
  6. Step 6: Final answer
    x = 28,331.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.