Home / 21,577.32-29,765.34-14,013.54

Finding the Fourth Proportional to 21,577.32, 29,765.34 and 14,013.54

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Solution

The fourth proportional to 21,577.32, 29,765.34 and 14,013.54 is: 19,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,577.32 : 29,765.34 = 14,013.54 : x
  2. Step 2: Convert to fraction form
    21,577.32/29,765.34 = 14,013.54/x
  3. Step 3: Cross multiply
    21,577.32x = 29,765.34 × 14,013.54
  4. Step 4: Simplify right side
    21,577.32x = 417,117,782.70
  5. Step 5: Solve for x
    x = 417,117,782.70/21,577.32
  6. Step 6: Final answer
    x = 19,331.31

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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.