Home / 42,629.84-63,919.01-16,988.12

Finding the Fourth Proportional to 42,629.84, 63,919.01 and 16,988.12

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Solution

The fourth proportional to 42,629.84, 63,919.01 and 16,988.12 is: 25,471.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,629.84 : 63,919.01 = 16,988.12 : x
  2. Step 2: Convert to fraction form
    42,629.84/63,919.01 = 16,988.12/x
  3. Step 3: Cross multiply
    42,629.84x = 63,919.01 × 16,988.12
  4. Step 4: Simplify right side
    42,629.84x = 1,085,863,679.17
  5. Step 5: Solve for x
    x = 1,085,863,679.17/42,629.84
  6. Step 6: Final answer
    x = 25,471.91

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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.