Home / 20,388.76-30,587.46-6,547.48

Finding the Fourth Proportional to 20,388.76, 30,587.46 and 6,547.48

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Solution

The fourth proportional to 20,388.76, 30,587.46 and 6,547.48 is: 9,822.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388.76 : 30,587.46 = 6,547.48 : x
  2. Step 2: Convert to fraction form
    20,388.76/30,587.46 = 6,547.48/x
  3. Step 3: Cross multiply
    20,388.76x = 30,587.46 × 6,547.48
  4. Step 4: Simplify right side
    20,388.76x = 200,270,782.60
  5. Step 5: Solve for x
    x = 200,270,782.60/20,388.76
  6. Step 6: Final answer
    x = 9,822.61

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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.