Home / 28,439.81-42,670.80-11,795.63

Finding the Fourth Proportional to 28,439.81, 42,670.80 and 11,795.63

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Solution

The fourth proportional to 28,439.81, 42,670.80 and 11,795.63 is: 17,698.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,439.81 : 42,670.80 = 11,795.63 : x
  2. Step 2: Convert to fraction form
    28,439.81/42,670.80 = 11,795.63/x
  3. Step 3: Cross multiply
    28,439.81x = 42,670.80 × 11,795.63
  4. Step 4: Simplify right side
    28,439.81x = 503,328,755.25
  5. Step 5: Solve for x
    x = 503,328,755.25/28,439.81
  6. Step 6: Final answer
    x = 17,698.04

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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.