Home / 42,915.24-64,372.80-11,752.92

Finding the Fourth Proportional to 42,915.24, 64,372.80 and 11,752.92

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Solution

The fourth proportional to 42,915.24, 64,372.80 and 11,752.92 is: 17,629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,915.24 : 64,372.80 = 11,752.92 : x
  2. Step 2: Convert to fraction form
    42,915.24/64,372.80 = 11,752.92/x
  3. Step 3: Cross multiply
    42,915.24x = 64,372.80 × 11,752.92
  4. Step 4: Simplify right side
    42,915.24x = 756,568,368.58
  5. Step 5: Solve for x
    x = 756,568,368.58/42,915.24
  6. Step 6: Final answer
    x = 17,629.36

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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.