Home / 28,297.70-42,415.55-14,235.30

Finding the Fourth Proportional to 28,297.70, 42,415.55 and 14,235.30

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Solution

The fourth proportional to 28,297.70, 42,415.55 and 14,235.30 is: 21,337.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,297.70 : 42,415.55 = 14,235.30 : x
  2. Step 2: Convert to fraction form
    28,297.70/42,415.55 = 14,235.30/x
  3. Step 3: Cross multiply
    28,297.70x = 42,415.55 × 14,235.30
  4. Step 4: Simplify right side
    28,297.70x = 603,798,078.92
  5. Step 5: Solve for x
    x = 603,798,078.92/28,297.70
  6. Step 6: Final answer
    x = 21,337.36

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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.