Home / 20,707.77-31,063.65-7,557.03

Finding the Fourth Proportional to 20,707.77, 31,063.65 and 7,557.03

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Solution

The fourth proportional to 20,707.77, 31,063.65 and 7,557.03 is: 11,336.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.77 : 31,063.65 = 7,557.03 : x
  2. Step 2: Convert to fraction form
    20,707.77/31,063.65 = 7,557.03/x
  3. Step 3: Cross multiply
    20,707.77x = 31,063.65 × 7,557.03
  4. Step 4: Simplify right side
    20,707.77x = 234,748,934.96
  5. Step 5: Solve for x
    x = 234,748,934.96/20,707.77
  6. Step 6: Final answer
    x = 11,336.27

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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.