Home / 28,275.87-42,404.07-14,230.47

Finding the Fourth Proportional to 28,275.87, 42,404.07 and 14,230.47

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Solution

The fourth proportional to 28,275.87, 42,404.07 and 14,230.47 is: 21,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,275.87 : 42,404.07 = 14,230.47 : x
  2. Step 2: Convert to fraction form
    28,275.87/42,404.07 = 14,230.47/x
  3. Step 3: Cross multiply
    28,275.87x = 42,404.07 × 14,230.47
  4. Step 4: Simplify right side
    28,275.87x = 603,429,846.01
  5. Step 5: Solve for x
    x = 603,429,846.01/28,275.87
  6. Step 6: Final answer
    x = 21,340.81

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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.