Home / 20,362.12-30,543.54-13,386.58

Finding the Fourth Proportional to 20,362.12, 30,543.54 and 13,386.58

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Solution

The fourth proportional to 20,362.12, 30,543.54 and 13,386.58 is: 20,080.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362.12 : 30,543.54 = 13,386.58 : x
  2. Step 2: Convert to fraction form
    20,362.12/30,543.54 = 13,386.58/x
  3. Step 3: Cross multiply
    20,362.12x = 30,543.54 × 13,386.58
  4. Step 4: Simplify right side
    20,362.12x = 408,873,541.69
  5. Step 5: Solve for x
    x = 408,873,541.69/20,362.12
  6. Step 6: Final answer
    x = 20,080.11

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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.