Home / 28,454.93-42,579.11-20,573.23

Finding the Fourth Proportional to 28,454.93, 42,579.11 and 20,573.23

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Solution

The fourth proportional to 28,454.93, 42,579.11 and 20,573.23 is: 30,785.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454.93 : 42,579.11 = 20,573.23 : x
  2. Step 2: Convert to fraction form
    28,454.93/42,579.11 = 20,573.23/x
  3. Step 3: Cross multiply
    28,454.93x = 42,579.11 × 20,573.23
  4. Step 4: Simplify right side
    28,454.93x = 875,989,507.46
  5. Step 5: Solve for x
    x = 875,989,507.46/28,454.93
  6. Step 6: Final answer
    x = 30,785.16

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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.