Home / 19,900.60-29,870.46-15,176.68

Finding the Fourth Proportional to 19,900.60, 29,870.46 and 15,176.68

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Solution

The fourth proportional to 19,900.60, 29,870.46 and 15,176.68 is: 22,779.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.60 : 29,870.46 = 15,176.68 : x
  2. Step 2: Convert to fraction form
    19,900.60/29,870.46 = 15,176.68/x
  3. Step 3: Cross multiply
    19,900.60x = 29,870.46 × 15,176.68
  4. Step 4: Simplify right side
    19,900.60x = 453,334,412.87
  5. Step 5: Solve for x
    x = 453,334,412.87/19,900.60
  6. Step 6: Final answer
    x = 22,779.94

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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.