Home / 20,501.51-30,761.99-12,197.93

Finding the Fourth Proportional to 20,501.51, 30,761.99 and 12,197.93

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Solution

The fourth proportional to 20,501.51, 30,761.99 and 12,197.93 is: 18,302.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.51 : 30,761.99 = 12,197.93 : x
  2. Step 2: Convert to fraction form
    20,501.51/30,761.99 = 12,197.93/x
  3. Step 3: Cross multiply
    20,501.51x = 30,761.99 × 12,197.93
  4. Step 4: Simplify right side
    20,501.51x = 375,232,539.69
  5. Step 5: Solve for x
    x = 375,232,539.69/20,501.51
  6. Step 6: Final answer
    x = 18,302.68

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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.