Home / 21,377.72-32,033.75-13,045.25

Finding the Fourth Proportional to 21,377.72, 32,033.75 and 13,045.25

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Solution

The fourth proportional to 21,377.72, 32,033.75 and 13,045.25 is: 19,547.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.72 : 32,033.75 = 13,045.25 : x
  2. Step 2: Convert to fraction form
    21,377.72/32,033.75 = 13,045.25/x
  3. Step 3: Cross multiply
    21,377.72x = 32,033.75 × 13,045.25
  4. Step 4: Simplify right side
    21,377.72x = 417,888,051.79
  5. Step 5: Solve for x
    x = 417,888,051.79/21,377.72
  6. Step 6: Final answer
    x = 19,547.84

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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.