Home / 19,181.64-28,726.02-15,870.36

Finding the Fourth Proportional to 19,181.64, 28,726.02 and 15,870.36

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Solution

The fourth proportional to 19,181.64, 28,726.02 and 15,870.36 is: 23,767.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181.64 : 28,726.02 = 15,870.36 : x
  2. Step 2: Convert to fraction form
    19,181.64/28,726.02 = 15,870.36/x
  3. Step 3: Cross multiply
    19,181.64x = 28,726.02 × 15,870.36
  4. Step 4: Simplify right side
    19,181.64x = 455,892,278.77
  5. Step 5: Solve for x
    x = 455,892,278.77/19,181.64
  6. Step 6: Final answer
    x = 23,767.12

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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.