Home / 28,062.24-42,064.08-11,415.60

Finding the Fourth Proportional to 28,062.24, 42,064.08 and 11,415.60

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Solution

The fourth proportional to 28,062.24, 42,064.08 and 11,415.60 is: 17,111.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,062.24 : 42,064.08 = 11,415.60 : x
  2. Step 2: Convert to fraction form
    28,062.24/42,064.08 = 11,415.60/x
  3. Step 3: Cross multiply
    28,062.24x = 42,064.08 × 11,415.60
  4. Step 4: Simplify right side
    28,062.24x = 480,186,711.65
  5. Step 5: Solve for x
    x = 480,186,711.65/28,062.24
  6. Step 6: Final answer
    x = 17,111.49

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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.