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Finding the Fourth Proportional to 35,775.60, 49,371.60 and 19,860.30

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Solution

The fourth proportional to 35,775.60, 49,371.60 and 19,860.30 is: 27,407.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,775.60 : 49,371.60 = 19,860.30 : x
  2. Step 2: Convert to fraction form
    35,775.60/49,371.60 = 19,860.30/x
  3. Step 3: Cross multiply
    35,775.60x = 49,371.60 × 19,860.30
  4. Step 4: Simplify right side
    35,775.60x = 980,534,787.48
  5. Step 5: Solve for x
    x = 980,534,787.48/35,775.60
  6. Step 6: Final answer
    x = 27,407.92

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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.