Home / 35,826.80-53,740.20-20,080.40

Finding the Fourth Proportional to 35,826.80, 53,740.20 and 20,080.40

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Solution

The fourth proportional to 35,826.80, 53,740.20 and 20,080.40 is: 30,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,826.80 : 53,740.20 = 20,080.40 : x
  2. Step 2: Convert to fraction form
    35,826.80/53,740.20 = 20,080.40/x
  3. Step 3: Cross multiply
    35,826.80x = 53,740.20 × 20,080.40
  4. Step 4: Simplify right side
    35,826.80x = 1,079,124,712.08
  5. Step 5: Solve for x
    x = 1,079,124,712.08/35,826.80
  6. Step 6: Final answer
    x = 30,120.60

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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.