Home / 28,653.23-42,979.64-15,588.65

Finding the Fourth Proportional to 28,653.23, 42,979.64 and 15,588.65

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Solution

The fourth proportional to 28,653.23, 42,979.64 and 15,588.65 is: 23,382.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,653.23 : 42,979.64 = 15,588.65 : x
  2. Step 2: Convert to fraction form
    28,653.23/42,979.64 = 15,588.65/x
  3. Step 3: Cross multiply
    28,653.23x = 42,979.64 × 15,588.65
  4. Step 4: Simplify right side
    28,653.23x = 669,994,272.24
  5. Step 5: Solve for x
    x = 669,994,272.24/28,653.23
  6. Step 6: Final answer
    x = 23,382.86

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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.