Home / 40,063.02-55,285.29-21,913.45

Finding the Fourth Proportional to 40,063.02, 55,285.29 and 21,913.45

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Solution

The fourth proportional to 40,063.02, 55,285.29 and 21,913.45 is: 30,239.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,063.02 : 55,285.29 = 21,913.45 : x
  2. Step 2: Convert to fraction form
    40,063.02/55,285.29 = 21,913.45/x
  3. Step 3: Cross multiply
    40,063.02x = 55,285.29 × 21,913.45
  4. Step 4: Simplify right side
    40,063.02x = 1,211,491,438.15
  5. Step 5: Solve for x
    x = 1,211,491,438.15/40,063.02
  6. Step 6: Final answer
    x = 30,239.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.