Home / 28,317.66-39,074.96-15,568.74

Finding the Fourth Proportional to 28,317.66, 39,074.96 and 15,568.74

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Solution

The fourth proportional to 28,317.66, 39,074.96 and 15,568.74 is: 21,482.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317.66 : 39,074.96 = 15,568.74 : x
  2. Step 2: Convert to fraction form
    28,317.66/39,074.96 = 15,568.74/x
  3. Step 3: Cross multiply
    28,317.66x = 39,074.96 × 15,568.74
  4. Step 4: Simplify right side
    28,317.66x = 608,347,892.75
  5. Step 5: Solve for x
    x = 608,347,892.75/28,317.66
  6. Step 6: Final answer
    x = 21,482.99

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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.