Home / 28,319.59-42,484.49-11,670.36

Finding the Fourth Proportional to 28,319.59, 42,484.49 and 11,670.36

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Solution

The fourth proportional to 28,319.59, 42,484.49 and 11,670.36 is: 17,507.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.59 : 42,484.49 = 11,670.36 : x
  2. Step 2: Convert to fraction form
    28,319.59/42,484.49 = 11,670.36/x
  3. Step 3: Cross multiply
    28,319.59x = 42,484.49 × 11,670.36
  4. Step 4: Simplify right side
    28,319.59x = 495,809,292.72
  5. Step 5: Solve for x
    x = 495,809,292.72/28,319.59
  6. Step 6: Final answer
    x = 17,507.64

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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.