Home / 20,341.77-28,084.69-13,966.30

Finding the Fourth Proportional to 20,341.77, 28,084.69 and 13,966.30

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Solution

The fourth proportional to 20,341.77, 28,084.69 and 13,966.30 is: 19,282.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341.77 : 28,084.69 = 13,966.30 : x
  2. Step 2: Convert to fraction form
    20,341.77/28,084.69 = 13,966.30/x
  3. Step 3: Cross multiply
    20,341.77x = 28,084.69 × 13,966.30
  4. Step 4: Simplify right side
    20,341.77x = 392,239,205.95
  5. Step 5: Solve for x
    x = 392,239,205.95/20,341.77
  6. Step 6: Final answer
    x = 19,282.45

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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.