Home / 20,424.07-30,643.59-6,385.13

Finding the Fourth Proportional to 20,424.07, 30,643.59 and 6,385.13

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Solution

The fourth proportional to 20,424.07, 30,643.59 and 6,385.13 is: 9,580.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.07 : 30,643.59 = 6,385.13 : x
  2. Step 2: Convert to fraction form
    20,424.07/30,643.59 = 6,385.13/x
  3. Step 3: Cross multiply
    20,424.07x = 30,643.59 × 6,385.13
  4. Step 4: Simplify right side
    20,424.07x = 195,663,273.50
  5. Step 5: Solve for x
    x = 195,663,273.50/20,424.07
  6. Step 6: Final answer
    x = 9,580.03

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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.