Home / 20,943.14-31,359.72-17,603.16

Finding the Fourth Proportional to 20,943.14, 31,359.72 and 17,603.16

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Solution

The fourth proportional to 20,943.14, 31,359.72 and 17,603.16 is: 26,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943.14 : 31,359.72 = 17,603.16 : x
  2. Step 2: Convert to fraction form
    20,943.14/31,359.72 = 17,603.16/x
  3. Step 3: Cross multiply
    20,943.14x = 31,359.72 × 17,603.16
  4. Step 4: Simplify right side
    20,943.14x = 552,030,168.72
  5. Step 5: Solve for x
    x = 552,030,168.72/20,943.14
  6. Step 6: Final answer
    x = 26,358.52

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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.