Home / 21,449.28-29,590.00-13,495.89

Finding the Fourth Proportional to 21,449.28, 29,590.00 and 13,495.89

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Solution

The fourth proportional to 21,449.28, 29,590.00 and 13,495.89 is: 18,618.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.28 : 29,590.00 = 13,495.89 : x
  2. Step 2: Convert to fraction form
    21,449.28/29,590.00 = 13,495.89/x
  3. Step 3: Cross multiply
    21,449.28x = 29,590.00 × 13,495.89
  4. Step 4: Simplify right side
    21,449.28x = 399,343,360.12
  5. Step 5: Solve for x
    x = 399,343,360.12/21,449.28
  6. Step 6: Final answer
    x = 18,618.03

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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.