Home / 28,545.08-42,829.93-11,908.39

Finding the Fourth Proportional to 28,545.08, 42,829.93 and 11,908.39

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Solution

The fourth proportional to 28,545.08, 42,829.93 and 11,908.39 is: 17,867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545.08 : 42,829.93 = 11,908.39 : x
  2. Step 2: Convert to fraction form
    28,545.08/42,829.93 = 11,908.39/x
  3. Step 3: Cross multiply
    28,545.08x = 42,829.93 × 11,908.39
  4. Step 4: Simplify right side
    28,545.08x = 510,035,510.11
  5. Step 5: Solve for x
    x = 510,035,510.11/28,545.08
  6. Step 6: Final answer
    x = 17,867.72

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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.