Home / 19,418.15-28,995.51-15,424.58

Finding the Fourth Proportional to 19,418.15, 28,995.51 and 15,424.58

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Solution

The fourth proportional to 19,418.15, 28,995.51 and 15,424.58 is: 23,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.15 : 28,995.51 = 15,424.58 : x
  2. Step 2: Convert to fraction form
    19,418.15/28,995.51 = 15,424.58/x
  3. Step 3: Cross multiply
    19,418.15x = 28,995.51 × 15,424.58
  4. Step 4: Simplify right side
    19,418.15x = 447,243,418.66
  5. Step 5: Solve for x
    x = 447,243,418.66/19,418.15
  6. Step 6: Final answer
    x = 23,032.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.