Home / 20,434.74-28,199.96-11,482.24

Finding the Fourth Proportional to 20,434.74, 28,199.96 and 11,482.24

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Solution

The fourth proportional to 20,434.74, 28,199.96 and 11,482.24 is: 15,845.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.74 : 28,199.96 = 11,482.24 : x
  2. Step 2: Convert to fraction form
    20,434.74/28,199.96 = 11,482.24/x
  3. Step 3: Cross multiply
    20,434.74x = 28,199.96 × 11,482.24
  4. Step 4: Simplify right side
    20,434.74x = 323,798,708.71
  5. Step 5: Solve for x
    x = 323,798,708.71/20,434.74
  6. Step 6: Final answer
    x = 15,845.50

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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.