Home / 20,346.09-30,503.59-14,088.13

Finding the Fourth Proportional to 20,346.09, 30,503.59 and 14,088.13

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Solution

The fourth proportional to 20,346.09, 30,503.59 and 14,088.13 is: 21,121.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346.09 : 30,503.59 = 14,088.13 : x
  2. Step 2: Convert to fraction form
    20,346.09/30,503.59 = 14,088.13/x
  3. Step 3: Cross multiply
    20,346.09x = 30,503.59 × 14,088.13
  4. Step 4: Simplify right side
    20,346.09x = 429,738,429.91
  5. Step 5: Solve for x
    x = 429,738,429.91/20,346.09
  6. Step 6: Final answer
    x = 21,121.43

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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.