Home / 21,199.95-29,260.31-14,824.85

Finding the Fourth Proportional to 21,199.95, 29,260.31 and 14,824.85

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Solution

The fourth proportional to 21,199.95, 29,260.31 and 14,824.85 is: 20,461.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199.95 : 29,260.31 = 14,824.85 : x
  2. Step 2: Convert to fraction form
    21,199.95/29,260.31 = 14,824.85/x
  3. Step 3: Cross multiply
    21,199.95x = 29,260.31 × 14,824.85
  4. Step 4: Simplify right side
    21,199.95x = 433,779,486.28
  5. Step 5: Solve for x
    x = 433,779,486.28/21,199.95
  6. Step 6: Final answer
    x = 20,461.34

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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.