Home / 28,365.87-42,545.56-7,590.99

Finding the Fourth Proportional to 28,365.87, 42,545.56 and 7,590.99

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Solution

The fourth proportional to 28,365.87, 42,545.56 and 7,590.99 is: 11,385.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,365.87 : 42,545.56 = 7,590.99 : x
  2. Step 2: Convert to fraction form
    28,365.87/42,545.56 = 7,590.99/x
  3. Step 3: Cross multiply
    28,365.87x = 42,545.56 × 7,590.99
  4. Step 4: Simplify right side
    28,365.87x = 322,962,920.50
  5. Step 5: Solve for x
    x = 322,962,920.50/28,365.87
  6. Step 6: Final answer
    x = 11,385.62

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1.5x scale

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.