Home / 28,144.56-42,216.82-13,345.41

Finding the Fourth Proportional to 28,144.56, 42,216.82 and 13,345.41

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Solution

The fourth proportional to 28,144.56, 42,216.82 and 13,345.41 is: 20,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144.56 : 42,216.82 = 13,345.41 : x
  2. Step 2: Convert to fraction form
    28,144.56/42,216.82 = 13,345.41/x
  3. Step 3: Cross multiply
    28,144.56x = 42,216.82 × 13,345.41
  4. Step 4: Simplify right side
    28,144.56x = 563,400,696.81
  5. Step 5: Solve for x
    x = 563,400,696.81/28,144.56
  6. Step 6: Final answer
    x = 20,018.10

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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.