Home / 20,646.93-28,497.30-13,574.01

Finding the Fourth Proportional to 20,646.93, 28,497.30 and 13,574.01

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Solution

The fourth proportional to 20,646.93, 28,497.30 and 13,574.01 is: 18,735.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.93 : 28,497.30 = 13,574.01 : x
  2. Step 2: Convert to fraction form
    20,646.93/28,497.30 = 13,574.01/x
  3. Step 3: Cross multiply
    20,646.93x = 28,497.30 × 13,574.01
  4. Step 4: Simplify right side
    20,646.93x = 386,822,635.17
  5. Step 5: Solve for x
    x = 386,822,635.17/20,646.93
  6. Step 6: Final answer
    x = 18,735.12

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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.