Home / 28,208.61-38,922.77-18,134.74

Finding the Fourth Proportional to 28,208.61, 38,922.77 and 18,134.74

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Solution

The fourth proportional to 28,208.61, 38,922.77 and 18,134.74 is: 25,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.61 : 38,922.77 = 18,134.74 : x
  2. Step 2: Convert to fraction form
    28,208.61/38,922.77 = 18,134.74/x
  3. Step 3: Cross multiply
    28,208.61x = 38,922.77 × 18,134.74
  4. Step 4: Simplify right side
    28,208.61x = 705,854,223.36
  5. Step 5: Solve for x
    x = 705,854,223.36/28,208.61
  6. Step 6: Final answer
    x = 25,022.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.