Home / 22,813.04-31,493.40-15,399.92

Finding the Fourth Proportional to 22,813.04, 31,493.40 and 15,399.92

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Solution

The fourth proportional to 22,813.04, 31,493.40 and 15,399.92 is: 21,259.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,813.04 : 31,493.40 = 15,399.92 : x
  2. Step 2: Convert to fraction form
    22,813.04/31,493.40 = 15,399.92/x
  3. Step 3: Cross multiply
    22,813.04x = 31,493.40 × 15,399.92
  4. Step 4: Simplify right side
    22,813.04x = 484,995,840.53
  5. Step 5: Solve for x
    x = 484,995,840.53/22,813.04
  6. Step 6: Final answer
    x = 21,259.59

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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.