Home / 21,765.56-30,027.86-14,209.48

Finding the Fourth Proportional to 21,765.56, 30,027.86 and 14,209.48

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Solution

The fourth proportional to 21,765.56, 30,027.86 and 14,209.48 is: 19,603.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765.56 : 30,027.86 = 14,209.48 : x
  2. Step 2: Convert to fraction form
    21,765.56/30,027.86 = 14,209.48/x
  3. Step 3: Cross multiply
    21,765.56x = 30,027.86 × 14,209.48
  4. Step 4: Simplify right side
    21,765.56x = 426,680,276.11
  5. Step 5: Solve for x
    x = 426,680,276.11/21,765.56
  6. Step 6: Final answer
    x = 19,603.46

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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.