Home / 28,369.09-42,579.89-14,339.01

Finding the Fourth Proportional to 28,369.09, 42,579.89 and 14,339.01

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Solution

The fourth proportional to 28,369.09, 42,579.89 and 14,339.01 is: 21,521.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.09 : 42,579.89 = 14,339.01 : x
  2. Step 2: Convert to fraction form
    28,369.09/42,579.89 = 14,339.01/x
  3. Step 3: Cross multiply
    28,369.09x = 42,579.89 × 14,339.01
  4. Step 4: Simplify right side
    28,369.09x = 610,553,468.51
  5. Step 5: Solve for x
    x = 610,553,468.51/28,369.09
  6. Step 6: Final answer
    x = 21,521.79

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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.