Home / 40,205.10-60,292.20-19,128.90

Finding the Fourth Proportional to 40,205.10, 60,292.20 and 19,128.90

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Solution

The fourth proportional to 40,205.10, 60,292.20 and 19,128.90 is: 28,686.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,205.10 : 60,292.20 = 19,128.90 : x
  2. Step 2: Convert to fraction form
    40,205.10/60,292.20 = 19,128.90/x
  3. Step 3: Cross multiply
    40,205.10x = 60,292.20 × 19,128.90
  4. Step 4: Simplify right side
    40,205.10x = 1,153,323,464.58
  5. Step 5: Solve for x
    x = 1,153,323,464.58/40,205.10
  6. Step 6: Final answer
    x = 28,686.00

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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.