Home / 20,599.56-28,422.63-13,897.62

Finding the Fourth Proportional to 20,599.56, 28,422.63 and 13,897.62

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Solution

The fourth proportional to 20,599.56, 28,422.63 and 13,897.62 is: 19,175.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.56 : 28,422.63 = 13,897.62 : x
  2. Step 2: Convert to fraction form
    20,599.56/28,422.63 = 13,897.62/x
  3. Step 3: Cross multiply
    20,599.56x = 28,422.63 × 13,897.62
  4. Step 4: Simplify right side
    20,599.56x = 395,006,911.14
  5. Step 5: Solve for x
    x = 395,006,911.14/20,599.56
  6. Step 6: Final answer
    x = 19,175.50

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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.