Home / 20,590.74-28,418.27-13,037.76

Finding the Fourth Proportional to 20,590.74, 28,418.27 and 13,037.76

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Solution

The fourth proportional to 20,590.74, 28,418.27 and 13,037.76 is: 17,994.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.74 : 28,418.27 = 13,037.76 : x
  2. Step 2: Convert to fraction form
    20,590.74/28,418.27 = 13,037.76/x
  3. Step 3: Cross multiply
    20,590.74x = 28,418.27 × 13,037.76
  4. Step 4: Simplify right side
    20,590.74x = 370,510,518.69
  5. Step 5: Solve for x
    x = 370,510,518.69/20,590.74
  6. Step 6: Final answer
    x = 17,994.04

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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.