Home / 20,384.26-28,100.79-14,316.08

Finding the Fourth Proportional to 20,384.26, 28,100.79 and 14,316.08

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Solution

The fourth proportional to 20,384.26, 28,100.79 and 14,316.08 is: 19,735.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384.26 : 28,100.79 = 14,316.08 : x
  2. Step 2: Convert to fraction form
    20,384.26/28,100.79 = 14,316.08/x
  3. Step 3: Cross multiply
    20,384.26x = 28,100.79 × 14,316.08
  4. Step 4: Simplify right side
    20,384.26x = 402,293,017.20
  5. Step 5: Solve for x
    x = 402,293,017.20/20,384.26
  6. Step 6: Final answer
    x = 19,735.48

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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.