Home / 20,317.66-28,041.36-12,358.34

Finding the Fourth Proportional to 20,317.66, 28,041.36 and 12,358.34

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Solution

The fourth proportional to 20,317.66, 28,041.36 and 12,358.34 is: 17,056.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.66 : 28,041.36 = 12,358.34 : x
  2. Step 2: Convert to fraction form
    20,317.66/28,041.36 = 12,358.34/x
  3. Step 3: Cross multiply
    20,317.66x = 28,041.36 × 12,358.34
  4. Step 4: Simplify right side
    20,317.66x = 346,544,731.05
  5. Step 5: Solve for x
    x = 346,544,731.05/20,317.66
  6. Step 6: Final answer
    x = 17,056.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.