Home / 19,904.23-29,862.47-11,145.34

Finding the Fourth Proportional to 19,904.23, 29,862.47 and 11,145.34

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Solution

The fourth proportional to 19,904.23, 29,862.47 and 11,145.34 is: 16,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,904.23 : 29,862.47 = 11,145.34 : x
  2. Step 2: Convert to fraction form
    19,904.23/29,862.47 = 11,145.34/x
  3. Step 3: Cross multiply
    19,904.23x = 29,862.47 × 11,145.34
  4. Step 4: Simplify right side
    19,904.23x = 332,827,381.39
  5. Step 5: Solve for x
    x = 332,827,381.39/19,904.23
  6. Step 6: Final answer
    x = 16,721.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.