Home / 28,392.91-42,558.78-13,570.31

Finding the Fourth Proportional to 28,392.91, 42,558.78 and 13,570.31

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Solution

The fourth proportional to 28,392.91, 42,558.78 and 13,570.31 is: 20,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392.91 : 42,558.78 = 13,570.31 : x
  2. Step 2: Convert to fraction form
    28,392.91/42,558.78 = 13,570.31/x
  3. Step 3: Cross multiply
    28,392.91x = 42,558.78 × 13,570.31
  4. Step 4: Simplify right side
    28,392.91x = 577,535,837.82
  5. Step 5: Solve for x
    x = 577,535,837.82/28,392.91
  6. Step 6: Final answer
    x = 20,340.85

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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.