Home / 28,721.64-42,800.55-27,782.04

Finding the Fourth Proportional to 28,721.64, 42,800.55 and 27,782.04

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Solution

The fourth proportional to 28,721.64, 42,800.55 and 27,782.04 is: 41,400.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.64 : 42,800.55 = 27,782.04 : x
  2. Step 2: Convert to fraction form
    28,721.64/42,800.55 = 27,782.04/x
  3. Step 3: Cross multiply
    28,721.64x = 42,800.55 × 27,782.04
  4. Step 4: Simplify right side
    28,721.64x = 1,189,086,592.12
  5. Step 5: Solve for x
    x = 1,189,086,592.12/28,721.64
  6. Step 6: Final answer
    x = 41,400.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.