Home / 20,319.45-28,038.26-11,824.32

Finding the Fourth Proportional to 20,319.45, 28,038.26 and 11,824.32

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Solution

The fourth proportional to 20,319.45, 28,038.26 and 11,824.32 is: 16,316.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.45 : 28,038.26 = 11,824.32 : x
  2. Step 2: Convert to fraction form
    20,319.45/28,038.26 = 11,824.32/x
  3. Step 3: Cross multiply
    20,319.45x = 28,038.26 × 11,824.32
  4. Step 4: Simplify right side
    20,319.45x = 331,533,358.48
  5. Step 5: Solve for x
    x = 331,533,358.48/20,319.45
  6. Step 6: Final answer
    x = 16,316.06

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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.