Home / 35,425.46-53,138.21-19,640.18

Finding the Fourth Proportional to 35,425.46, 53,138.21 and 19,640.18

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Solution

The fourth proportional to 35,425.46, 53,138.21 and 19,640.18 is: 29,460.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,425.46 : 53,138.21 = 19,640.18 : x
  2. Step 2: Convert to fraction form
    35,425.46/53,138.21 = 19,640.18/x
  3. Step 3: Cross multiply
    35,425.46x = 53,138.21 × 19,640.18
  4. Step 4: Simplify right side
    35,425.46x = 1,043,644,009.28
  5. Step 5: Solve for x
    x = 1,043,644,009.28/35,425.46
  6. Step 6: Final answer
    x = 29,460.28

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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.