Home / 43,146.81-64,707.39-19,440.68

Finding the Fourth Proportional to 43,146.81, 64,707.39 and 19,440.68

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Solution

The fourth proportional to 43,146.81, 64,707.39 and 19,440.68 is: 29,155.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,146.81 : 64,707.39 = 19,440.68 : x
  2. Step 2: Convert to fraction form
    43,146.81/64,707.39 = 19,440.68/x
  3. Step 3: Cross multiply
    43,146.81x = 64,707.39 × 19,440.68
  4. Step 4: Simplify right side
    43,146.81x = 1,257,955,339.09
  5. Step 5: Solve for x
    x = 1,257,955,339.09/43,146.81
  6. Step 6: Final answer
    x = 29,155.23

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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.