Home / 28,424.08-39,226.26-15,848.56

Finding the Fourth Proportional to 28,424.08, 39,226.26 and 15,848.56

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Solution

The fourth proportional to 28,424.08, 39,226.26 and 15,848.56 is: 21,871.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.08 : 39,226.26 = 15,848.56 : x
  2. Step 2: Convert to fraction form
    28,424.08/39,226.26 = 15,848.56/x
  3. Step 3: Cross multiply
    28,424.08x = 39,226.26 × 15,848.56
  4. Step 4: Simplify right side
    28,424.08x = 621,679,735.19
  5. Step 5: Solve for x
    x = 621,679,735.19/28,424.08
  6. Step 6: Final answer
    x = 21,871.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.