Home / 28,973.92-43,426.80-13,358.56

Finding the Fourth Proportional to 28,973.92, 43,426.80 and 13,358.56

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Solution

The fourth proportional to 28,973.92, 43,426.80 and 13,358.56 is: 20,022.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973.92 : 43,426.80 = 13,358.56 : x
  2. Step 2: Convert to fraction form
    28,973.92/43,426.80 = 13,358.56/x
  3. Step 3: Cross multiply
    28,973.92x = 43,426.80 × 13,358.56
  4. Step 4: Simplify right side
    28,973.92x = 580,119,513.41
  5. Step 5: Solve for x
    x = 580,119,513.41/28,973.92
  6. Step 6: Final answer
    x = 20,022.13

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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.