Home / 20,386.59-30,530.05-12,041.83

Finding the Fourth Proportional to 20,386.59, 30,530.05 and 12,041.83

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Solution

The fourth proportional to 20,386.59, 30,530.05 and 12,041.83 is: 18,033.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386.59 : 30,530.05 = 12,041.83 : x
  2. Step 2: Convert to fraction form
    20,386.59/30,530.05 = 12,041.83/x
  3. Step 3: Cross multiply
    20,386.59x = 30,530.05 × 12,041.83
  4. Step 4: Simplify right side
    20,386.59x = 367,637,680.05
  5. Step 5: Solve for x
    x = 367,637,680.05/20,386.59
  6. Step 6: Final answer
    x = 18,033.31

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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.