Home / 42,256.62-58,304.28-28,855.78

Finding the Fourth Proportional to 42,256.62, 58,304.28 and 28,855.78

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Solution

The fourth proportional to 42,256.62, 58,304.28 and 28,855.78 is: 39,814.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,256.62 : 58,304.28 = 28,855.78 : x
  2. Step 2: Convert to fraction form
    42,256.62/58,304.28 = 28,855.78/x
  3. Step 3: Cross multiply
    42,256.62x = 58,304.28 × 28,855.78
  4. Step 4: Simplify right side
    42,256.62x = 1,682,415,476.74
  5. Step 5: Solve for x
    x = 1,682,415,476.74/42,256.62
  6. Step 6: Final answer
    x = 39,814.25

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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.