Home / 21,774.96-30,064.28-14,615.60

Finding the Fourth Proportional to 21,774.96, 30,064.28 and 14,615.60

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Solution

The fourth proportional to 21,774.96, 30,064.28 and 14,615.60 is: 20,179.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,774.96 : 30,064.28 = 14,615.60 : x
  2. Step 2: Convert to fraction form
    21,774.96/30,064.28 = 14,615.60/x
  3. Step 3: Cross multiply
    21,774.96x = 30,064.28 × 14,615.60
  4. Step 4: Simplify right side
    21,774.96x = 439,407,490.77
  5. Step 5: Solve for x
    x = 439,407,490.77/21,774.96
  6. Step 6: Final answer
    x = 20,179.49

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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.