Home / 43,140.10-64,710.18-13,560.52

Finding the Fourth Proportional to 43,140.10, 64,710.18 and 13,560.52

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Solution

The fourth proportional to 43,140.10, 64,710.18 and 13,560.52 is: 20,340.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.10 : 64,710.18 = 13,560.52 : x
  2. Step 2: Convert to fraction form
    43,140.10/64,710.18 = 13,560.52/x
  3. Step 3: Cross multiply
    43,140.10x = 64,710.18 × 13,560.52
  4. Step 4: Simplify right side
    43,140.10x = 877,503,690.09
  5. Step 5: Solve for x
    x = 877,503,690.09/43,140.10
  6. Step 6: Final answer
    x = 20,340.79

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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.