Home / 19,875.60-29,777.92-13,281.84

Finding the Fourth Proportional to 19,875.60, 29,777.92 and 13,281.84

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Solution

The fourth proportional to 19,875.60, 29,777.92 and 13,281.84 is: 19,899.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.60 : 29,777.92 = 13,281.84 : x
  2. Step 2: Convert to fraction form
    19,875.60/29,777.92 = 13,281.84/x
  3. Step 3: Cross multiply
    19,875.60x = 29,777.92 × 13,281.84
  4. Step 4: Simplify right side
    19,875.60x = 395,505,568.97
  5. Step 5: Solve for x
    x = 395,505,568.97/19,875.60
  6. Step 6: Final answer
    x = 19,899.05

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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.