Home / 28,040.19-42,066.09-11,400.23

Finding the Fourth Proportional to 28,040.19, 42,066.09 and 11,400.23

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Solution

The fourth proportional to 28,040.19, 42,066.09 and 11,400.23 is: 17,102.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.19 : 42,066.09 = 11,400.23 : x
  2. Step 2: Convert to fraction form
    28,040.19/42,066.09 = 11,400.23/x
  3. Step 3: Cross multiply
    28,040.19x = 42,066.09 × 11,400.23
  4. Step 4: Simplify right side
    28,040.19x = 479,562,890.87
  5. Step 5: Solve for x
    x = 479,562,890.87/28,040.19
  6. Step 6: Final answer
    x = 17,102.70

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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.