Home / 21,322.01-29,389.10-19,535.20

Finding the Fourth Proportional to 21,322.01, 29,389.10 and 19,535.20

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Solution

The fourth proportional to 21,322.01, 29,389.10 and 19,535.20 is: 26,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.01 : 29,389.10 = 19,535.20 : x
  2. Step 2: Convert to fraction form
    21,322.01/29,389.10 = 19,535.20/x
  3. Step 3: Cross multiply
    21,322.01x = 29,389.10 × 19,535.20
  4. Step 4: Simplify right side
    21,322.01x = 574,121,775.17
  5. Step 5: Solve for x
    x = 574,121,775.17/21,322.01
  6. Step 6: Final answer
    x = 26,926.25

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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.