Home / 28,325.84-39,091.08-15,750.32

Finding the Fourth Proportional to 28,325.84, 39,091.08 and 15,750.32

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Solution

The fourth proportional to 28,325.84, 39,091.08 and 15,750.32 is: 21,736.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325.84 : 39,091.08 = 15,750.32 : x
  2. Step 2: Convert to fraction form
    28,325.84/39,091.08 = 15,750.32/x
  3. Step 3: Cross multiply
    28,325.84x = 39,091.08 × 15,750.32
  4. Step 4: Simplify right side
    28,325.84x = 615,697,019.15
  5. Step 5: Solve for x
    x = 615,697,019.15/28,325.84
  6. Step 6: Final answer
    x = 21,736.23

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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.