Home / 28,036.92-42,055.54-8,315.64

Finding the Fourth Proportional to 28,036.92, 42,055.54 and 8,315.64

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Solution

The fourth proportional to 28,036.92, 42,055.54 and 8,315.64 is: 12,473.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.92 : 42,055.54 = 8,315.64 : x
  2. Step 2: Convert to fraction form
    28,036.92/42,055.54 = 8,315.64/x
  3. Step 3: Cross multiply
    28,036.92x = 42,055.54 × 8,315.64
  4. Step 4: Simplify right side
    28,036.92x = 349,718,730.65
  5. Step 5: Solve for x
    x = 349,718,730.65/28,036.92
  6. Step 6: Final answer
    x = 12,473.51

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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.