Home / 20,440.14-30,664.63-6,207.45

Finding the Fourth Proportional to 20,440.14, 30,664.63 and 6,207.45

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Solution

The fourth proportional to 20,440.14, 30,664.63 and 6,207.45 is: 9,312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440.14 : 30,664.63 = 6,207.45 : x
  2. Step 2: Convert to fraction form
    20,440.14/30,664.63 = 6,207.45/x
  3. Step 3: Cross multiply
    20,440.14x = 30,664.63 × 6,207.45
  4. Step 4: Simplify right side
    20,440.14x = 190,349,050.26
  5. Step 5: Solve for x
    x = 190,349,050.26/20,440.14
  6. Step 6: Final answer
    x = 9,312.51

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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.