Home / 43,140.84-64,710.66-13,560.48

Finding the Fourth Proportional to 43,140.84, 64,710.66 and 13,560.48

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Solution

The fourth proportional to 43,140.84, 64,710.66 and 13,560.48 is: 20,340.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.84 : 64,710.66 = 13,560.48 : x
  2. Step 2: Convert to fraction form
    43,140.84/64,710.66 = 13,560.48/x
  3. Step 3: Cross multiply
    43,140.84x = 64,710.66 × 13,560.48
  4. Step 4: Simplify right side
    43,140.84x = 877,507,610.72
  5. Step 5: Solve for x
    x = 877,507,610.72/43,140.84
  6. Step 6: Final answer
    x = 20,340.53

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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.