Home / 21,259.19-29,214.53-20,283.54

Finding the Fourth Proportional to 21,259.19, 29,214.53 and 20,283.54

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Solution

The fourth proportional to 21,259.19, 29,214.53 and 20,283.54 is: 27,873.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259.19 : 29,214.53 = 20,283.54 : x
  2. Step 2: Convert to fraction form
    21,259.19/29,214.53 = 20,283.54/x
  3. Step 3: Cross multiply
    21,259.19x = 29,214.53 × 20,283.54
  4. Step 4: Simplify right side
    21,259.19x = 592,574,087.84
  5. Step 5: Solve for x
    x = 592,574,087.84/21,259.19
  6. Step 6: Final answer
    x = 27,873.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.