Home / 28,314.70-39,074.74-15,568.42

Finding the Fourth Proportional to 28,314.70, 39,074.74 and 15,568.42

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Solution

The fourth proportional to 28,314.70, 39,074.74 and 15,568.42 is: 21,484.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.70 : 39,074.74 = 15,568.42 : x
  2. Step 2: Convert to fraction form
    28,314.70/39,074.74 = 15,568.42/x
  3. Step 3: Cross multiply
    28,314.70x = 39,074.74 × 15,568.42
  4. Step 4: Simplify right side
    28,314.70x = 608,331,963.71
  5. Step 5: Solve for x
    x = 608,331,963.71/28,314.70
  6. Step 6: Final answer
    x = 21,484.67

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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.