Home / 51,018.98-70,408.58-28,358.35

Finding the Fourth Proportional to 51,018.98, 70,408.58 and 28,358.35

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Solution

The fourth proportional to 51,018.98, 70,408.58 and 28,358.35 is: 39,135.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,018.98 : 70,408.58 = 28,358.35 : x
  2. Step 2: Convert to fraction form
    51,018.98/70,408.58 = 28,358.35/x
  3. Step 3: Cross multiply
    51,018.98x = 70,408.58 × 28,358.35
  4. Step 4: Simplify right side
    51,018.98x = 1,996,670,836.83
  5. Step 5: Solve for x
    x = 1,996,670,836.83/51,018.98
  6. Step 6: Final answer
    x = 39,135.85

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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.