Home / 28,074.98-38,741.81-15,325.62

Finding the Fourth Proportional to 28,074.98, 38,741.81 and 15,325.62

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Solution

The fourth proportional to 28,074.98, 38,741.81 and 15,325.62 is: 21,148.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,074.98 : 38,741.81 = 15,325.62 : x
  2. Step 2: Convert to fraction form
    28,074.98/38,741.81 = 15,325.62/x
  3. Step 3: Cross multiply
    28,074.98x = 38,741.81 × 15,325.62
  4. Step 4: Simplify right side
    28,074.98x = 593,742,181.54
  5. Step 5: Solve for x
    x = 593,742,181.54/28,074.98
  6. Step 6: Final answer
    x = 21,148.45

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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.