Home / 28,606.06-42,921.24-15,443.11

Finding the Fourth Proportional to 28,606.06, 42,921.24 and 15,443.11

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Solution

The fourth proportional to 28,606.06, 42,921.24 and 15,443.11 is: 23,171.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606.06 : 42,921.24 = 15,443.11 : x
  2. Step 2: Convert to fraction form
    28,606.06/42,921.24 = 15,443.11/x
  3. Step 3: Cross multiply
    28,606.06x = 42,921.24 × 15,443.11
  4. Step 4: Simplify right side
    28,606.06x = 662,837,430.66
  5. Step 5: Solve for x
    x = 662,837,430.66/28,606.06
  6. Step 6: Final answer
    x = 23,171.22

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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.