Home / 19,041.40-28,562.10-12,820.60

Finding the Fourth Proportional to 19,041.40, 28,562.10 and 12,820.60

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Solution

The fourth proportional to 19,041.40, 28,562.10 and 12,820.60 is: 19,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,041.40 : 28,562.10 = 12,820.60 : x
  2. Step 2: Convert to fraction form
    19,041.40/28,562.10 = 12,820.60/x
  3. Step 3: Cross multiply
    19,041.40x = 28,562.10 × 12,820.60
  4. Step 4: Simplify right side
    19,041.40x = 366,183,259.26
  5. Step 5: Solve for x
    x = 366,183,259.26/19,041.40
  6. Step 6: Final answer
    x = 19,230.90

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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.