Home / 28,401.12-42,601.44-7,339.35

Finding the Fourth Proportional to 28,401.12, 42,601.44 and 7,339.35

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Solution

The fourth proportional to 28,401.12, 42,601.44 and 7,339.35 is: 11,008.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,401.12 : 42,601.44 = 7,339.35 : x
  2. Step 2: Convert to fraction form
    28,401.12/42,601.44 = 7,339.35/x
  3. Step 3: Cross multiply
    28,401.12x = 42,601.44 × 7,339.35
  4. Step 4: Simplify right side
    28,401.12x = 312,666,878.66
  5. Step 5: Solve for x
    x = 312,666,878.66/28,401.12
  6. Step 6: Final answer
    x = 11,008.96

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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.