Home / 17,388.16-23,989.44-9,931.84

Finding the Fourth Proportional to 17,388.16, 23,989.44 and 9,931.84

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Solution

The fourth proportional to 17,388.16, 23,989.44 and 9,931.84 is: 13,702.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,388.16 : 23,989.44 = 9,931.84 : x
  2. Step 2: Convert to fraction form
    17,388.16/23,989.44 = 9,931.84/x
  3. Step 3: Cross multiply
    17,388.16x = 23,989.44 × 9,931.84
  4. Step 4: Simplify right side
    17,388.16x = 238,259,279.77
  5. Step 5: Solve for x
    x = 238,259,279.77/17,388.16
  6. Step 6: Final answer
    x = 13,702.39

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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.