Home / 20,505.39-30,645.73-14,970.39

Finding the Fourth Proportional to 20,505.39, 30,645.73 and 14,970.39

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Solution

The fourth proportional to 20,505.39, 30,645.73 and 14,970.39 is: 22,373.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505.39 : 30,645.73 = 14,970.39 : x
  2. Step 2: Convert to fraction form
    20,505.39/30,645.73 = 14,970.39/x
  3. Step 3: Cross multiply
    20,505.39x = 30,645.73 × 14,970.39
  4. Step 4: Simplify right side
    20,505.39x = 458,778,529.93
  5. Step 5: Solve for x
    x = 458,778,529.93/20,505.39
  6. Step 6: Final answer
    x = 22,373.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.