Home / 19,025.40-28,531.80-6,543.30

Finding the Fourth Proportional to 19,025.40, 28,531.80 and 6,543.30

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Solution

The fourth proportional to 19,025.40, 28,531.80 and 6,543.30 is: 9,812.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,025.40 : 28,531.80 = 6,543.30 : x
  2. Step 2: Convert to fraction form
    19,025.40/28,531.80 = 6,543.30/x
  3. Step 3: Cross multiply
    19,025.40x = 28,531.80 × 6,543.30
  4. Step 4: Simplify right side
    19,025.40x = 186,692,126.94
  5. Step 5: Solve for x
    x = 186,692,126.94/19,025.40
  6. Step 6: Final answer
    x = 9,812.78

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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.