Home / 19,930.36-29,888.54-5,886.64

Finding the Fourth Proportional to 19,930.36, 29,888.54 and 5,886.64

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Solution

The fourth proportional to 19,930.36, 29,888.54 and 5,886.64 is: 8,827.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.36 : 29,888.54 = 5,886.64 : x
  2. Step 2: Convert to fraction form
    19,930.36/29,888.54 = 5,886.64/x
  3. Step 3: Cross multiply
    19,930.36x = 29,888.54 × 5,886.64
  4. Step 4: Simplify right side
    19,930.36x = 175,943,075.11
  5. Step 5: Solve for x
    x = 175,943,075.11/19,930.36
  6. Step 6: Final answer
    x = 8,827.89

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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.