Home / 28,646.28-42,975.66-11,779.41

Finding the Fourth Proportional to 28,646.28, 42,975.66 and 11,779.41

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Solution

The fourth proportional to 28,646.28, 42,975.66 and 11,779.41 is: 17,671.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,646.28 : 42,975.66 = 11,779.41 : x
  2. Step 2: Convert to fraction form
    28,646.28/42,975.66 = 11,779.41/x
  3. Step 3: Cross multiply
    28,646.28x = 42,975.66 × 11,779.41
  4. Step 4: Simplify right side
    28,646.28x = 506,227,919.16
  5. Step 5: Solve for x
    x = 506,227,919.16/28,646.28
  6. Step 6: Final answer
    x = 17,671.68

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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.