Home / 19,431.28-29,148.84-5,582.32

Finding the Fourth Proportional to 19,431.28, 29,148.84 and 5,582.32

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Solution

The fourth proportional to 19,431.28, 29,148.84 and 5,582.32 is: 8,374.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.28 : 29,148.84 = 5,582.32 : x
  2. Step 2: Convert to fraction form
    19,431.28/29,148.84 = 5,582.32/x
  3. Step 3: Cross multiply
    19,431.28x = 29,148.84 × 5,582.32
  4. Step 4: Simplify right side
    19,431.28x = 162,718,152.51
  5. Step 5: Solve for x
    x = 162,718,152.51/19,431.28
  6. Step 6: Final answer
    x = 8,374.03

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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.