Home / 20,626.40-28,477.32-14,177.14

Finding the Fourth Proportional to 20,626.40, 28,477.32 and 14,177.14

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Solution

The fourth proportional to 20,626.40, 28,477.32 and 14,177.14 is: 19,573.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.40 : 28,477.32 = 14,177.14 : x
  2. Step 2: Convert to fraction form
    20,626.40/28,477.32 = 14,177.14/x
  3. Step 3: Cross multiply
    20,626.40x = 28,477.32 × 14,177.14
  4. Step 4: Simplify right side
    20,626.40x = 403,726,952.46
  5. Step 5: Solve for x
    x = 403,726,952.46/20,626.40
  6. Step 6: Final answer
    x = 19,573.31

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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.