Home / 19,919.21-29,871.86-5,875.51

Finding the Fourth Proportional to 19,919.21, 29,871.86 and 5,875.51

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Solution

The fourth proportional to 19,919.21, 29,871.86 and 5,875.51 is: 8,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.21 : 29,871.86 = 5,875.51 : x
  2. Step 2: Convert to fraction form
    19,919.21/29,871.86 = 5,875.51/x
  3. Step 3: Cross multiply
    19,919.21x = 29,871.86 × 5,875.51
  4. Step 4: Simplify right side
    19,919.21x = 175,512,460.51
  5. Step 5: Solve for x
    x = 175,512,460.51/19,919.21
  6. Step 6: Final answer
    x = 8,811.21

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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.