Home / 21,876.06-30,188.70-12,444.60

Finding the Fourth Proportional to 21,876.06, 30,188.70 and 12,444.60

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Solution

The fourth proportional to 21,876.06, 30,188.70 and 12,444.60 is: 17,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,876.06 : 30,188.70 = 12,444.60 : x
  2. Step 2: Convert to fraction form
    21,876.06/30,188.70 = 12,444.60/x
  3. Step 3: Cross multiply
    21,876.06x = 30,188.70 × 12,444.60
  4. Step 4: Simplify right side
    21,876.06x = 375,686,296.02
  5. Step 5: Solve for x
    x = 375,686,296.02/21,876.06
  6. Step 6: Final answer
    x = 17,173.40

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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.