Home / 13,935.84-20,904.84-3,547.50

Finding the Fourth Proportional to 13,935.84, 20,904.84 and 3,547.50

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Solution

The fourth proportional to 13,935.84, 20,904.84 and 3,547.50 is: 5,321.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.84 : 20,904.84 = 3,547.50 : x
  2. Step 2: Convert to fraction form
    13,935.84/20,904.84 = 3,547.50/x
  3. Step 3: Cross multiply
    13,935.84x = 20,904.84 × 3,547.50
  4. Step 4: Simplify right side
    13,935.84x = 74,159,919.90
  5. Step 5: Solve for x
    x = 74,159,919.90/13,935.84
  6. Step 6: Final answer
    x = 5,321.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.