Home / 19,125.60-28,689.21-5,978.22

Finding the Fourth Proportional to 19,125.60, 28,689.21 and 5,978.22

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Solution

The fourth proportional to 19,125.60, 28,689.21 and 5,978.22 is: 8,967.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125.60 : 28,689.21 = 5,978.22 : x
  2. Step 2: Convert to fraction form
    19,125.60/28,689.21 = 5,978.22/x
  3. Step 3: Cross multiply
    19,125.60x = 28,689.21 × 5,978.22
  4. Step 4: Simplify right side
    19,125.60x = 171,510,409.01
  5. Step 5: Solve for x
    x = 171,510,409.01/19,125.60
  6. Step 6: Final answer
    x = 8,967.58

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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.