Home / 20,569.39-30,853.81-4,987.15

Finding the Fourth Proportional to 20,569.39, 30,853.81 and 4,987.15

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Solution

The fourth proportional to 20,569.39, 30,853.81 and 4,987.15 is: 7,480.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569.39 : 30,853.81 = 4,987.15 : x
  2. Step 2: Convert to fraction form
    20,569.39/30,853.81 = 4,987.15/x
  3. Step 3: Cross multiply
    20,569.39x = 30,853.81 × 4,987.15
  4. Step 4: Simplify right side
    20,569.39x = 153,872,578.54
  5. Step 5: Solve for x
    x = 153,872,578.54/20,569.39
  6. Step 6: Final answer
    x = 7,480.66

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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.