Home / 28,653.15-42,979.54-15,588.56

Finding the Fourth Proportional to 28,653.15, 42,979.54 and 15,588.56

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Solution

The fourth proportional to 28,653.15, 42,979.54 and 15,588.56 is: 23,382.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,653.15 : 42,979.54 = 15,588.56 : x
  2. Step 2: Convert to fraction form
    28,653.15/42,979.54 = 15,588.56/x
  3. Step 3: Cross multiply
    28,653.15x = 42,979.54 × 15,588.56
  4. Step 4: Simplify right side
    28,653.15x = 669,989,060.12
  5. Step 5: Solve for x
    x = 669,989,060.12/28,653.15
  6. Step 6: Final answer
    x = 23,382.73

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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.