Home / 21,598.08-29,787.73-18,135.30

Finding the Fourth Proportional to 21,598.08, 29,787.73 and 18,135.30

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Solution

The fourth proportional to 21,598.08, 29,787.73 and 18,135.30 is: 25,011.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,598.08 : 29,787.73 = 18,135.30 : x
  2. Step 2: Convert to fraction form
    21,598.08/29,787.73 = 18,135.30/x
  3. Step 3: Cross multiply
    21,598.08x = 29,787.73 × 18,135.30
  4. Step 4: Simplify right side
    21,598.08x = 540,209,419.87
  5. Step 5: Solve for x
    x = 540,209,419.87/21,598.08
  6. Step 6: Final answer
    x = 25,011.92

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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.