Home / 28,208.64-42,306-11,573.40

Finding the Fourth Proportional to 28,208.64, 42,306 and 11,573.40

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Solution

The fourth proportional to 28,208.64, 42,306 and 11,573.40 is: 17,357.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.64 : 42,306 = 11,573.40 : x
  2. Step 2: Convert to fraction form
    28,208.64/42,306 = 11,573.40/x
  3. Step 3: Cross multiply
    28,208.64x = 42,306 × 11,573.40
  4. Step 4: Simplify right side
    28,208.64x = 489,624,260.40
  5. Step 5: Solve for x
    x = 489,624,260.40/28,208.64
  6. Step 6: Final answer
    x = 17,357.24

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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.