Home / 28,051.70-42,077.61-11,399.99

Finding the Fourth Proportional to 28,051.70, 42,077.61 and 11,399.99

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Solution

The fourth proportional to 28,051.70, 42,077.61 and 11,399.99 is: 17,100.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.70 : 42,077.61 = 11,399.99 : x
  2. Step 2: Convert to fraction form
    28,051.70/42,077.61 = 11,399.99/x
  3. Step 3: Cross multiply
    28,051.70x = 42,077.61 × 11,399.99
  4. Step 4: Simplify right side
    28,051.70x = 479,684,122.84
  5. Step 5: Solve for x
    x = 479,684,122.84/28,051.70
  6. Step 6: Final answer
    x = 17,100.00

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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.