Home / 28,317.40-39,074.60-15,568.48

Finding the Fourth Proportional to 28,317.40, 39,074.60 and 15,568.48

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Solution

The fourth proportional to 28,317.40, 39,074.60 and 15,568.48 is: 21,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317.40 : 39,074.60 = 15,568.48 : x
  2. Step 2: Convert to fraction form
    28,317.40/39,074.60 = 15,568.48/x
  3. Step 3: Cross multiply
    28,317.40x = 39,074.60 × 15,568.48
  4. Step 4: Simplify right side
    28,317.40x = 608,332,050.77
  5. Step 5: Solve for x
    x = 608,332,050.77/28,317.40
  6. Step 6: Final answer
    x = 21,482.62

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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.