Home / 42,850.88-64,259.04-13,261.76

Finding the Fourth Proportional to 42,850.88, 64,259.04 and 13,261.76

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Solution

The fourth proportional to 42,850.88, 64,259.04 and 13,261.76 is: 19,887.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,850.88 : 64,259.04 = 13,261.76 : x
  2. Step 2: Convert to fraction form
    42,850.88/64,259.04 = 13,261.76/x
  3. Step 3: Cross multiply
    42,850.88x = 64,259.04 × 13,261.76
  4. Step 4: Simplify right side
    42,850.88x = 852,187,966.31
  5. Step 5: Solve for x
    x = 852,187,966.31/42,850.88
  6. Step 6: Final answer
    x = 19,887.29

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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.