Home / 20,607.81-30,936.95-13,593.69

Finding the Fourth Proportional to 20,607.81, 30,936.95 and 13,593.69

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Solution

The fourth proportional to 20,607.81, 30,936.95 and 13,593.69 is: 20,407.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,607.81 : 30,936.95 = 13,593.69 : x
  2. Step 2: Convert to fraction form
    20,607.81/30,936.95 = 13,593.69/x
  3. Step 3: Cross multiply
    20,607.81x = 30,936.95 × 13,593.69
  4. Step 4: Simplify right side
    20,607.81x = 420,547,239.88
  5. Step 5: Solve for x
    x = 420,547,239.88/20,607.81
  6. Step 6: Final answer
    x = 20,407.18

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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.