Home / 43,143.42-64,710.86-13,560.47

Finding the Fourth Proportional to 43,143.42, 64,710.86 and 13,560.47

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Solution

The fourth proportional to 43,143.42, 64,710.86 and 13,560.47 is: 20,339.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,143.42 : 64,710.86 = 13,560.47 : x
  2. Step 2: Convert to fraction form
    43,143.42/64,710.86 = 13,560.47/x
  3. Step 3: Cross multiply
    43,143.42x = 64,710.86 × 13,560.47
  4. Step 4: Simplify right side
    43,143.42x = 877,509,284.35
  5. Step 5: Solve for x
    x = 877,509,284.35/43,143.42
  6. Step 6: Final answer
    x = 20,339.35

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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.