Home / 35,517.40-53,276.10-20,718.70

Finding the Fourth Proportional to 35,517.40, 53,276.10 and 20,718.70

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Solution

The fourth proportional to 35,517.40, 53,276.10 and 20,718.70 is: 31,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,517.40 : 53,276.10 = 20,718.70 : x
  2. Step 2: Convert to fraction form
    35,517.40/53,276.10 = 20,718.70/x
  3. Step 3: Cross multiply
    35,517.40x = 53,276.10 × 20,718.70
  4. Step 4: Simplify right side
    35,517.40x = 1,103,811,533.07
  5. Step 5: Solve for x
    x = 1,103,811,533.07/35,517.40
  6. Step 6: Final answer
    x = 31,078.05

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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.