Home / 28,248.93-42,363.27-8,521.38

Finding the Fourth Proportional to 28,248.93, 42,363.27 and 8,521.38

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Solution

The fourth proportional to 28,248.93, 42,363.27 and 8,521.38 is: 12,779.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.93 : 42,363.27 = 8,521.38 : x
  2. Step 2: Convert to fraction form
    28,248.93/42,363.27 = 8,521.38/x
  3. Step 3: Cross multiply
    28,248.93x = 42,363.27 × 8,521.38
  4. Step 4: Simplify right side
    28,248.93x = 360,993,521.71
  5. Step 5: Solve for x
    x = 360,993,521.71/28,248.93
  6. Step 6: Final answer
    x = 12,779.02

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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.