Home / 42,582.84-63,869.40-11,415.66

Finding the Fourth Proportional to 42,582.84, 63,869.40 and 11,415.66

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Solution

The fourth proportional to 42,582.84, 63,869.40 and 11,415.66 is: 17,122.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,582.84 : 63,869.40 = 11,415.66 : x
  2. Step 2: Convert to fraction form
    42,582.84/63,869.40 = 11,415.66/x
  3. Step 3: Cross multiply
    42,582.84x = 63,869.40 × 11,415.66
  4. Step 4: Simplify right side
    42,582.84x = 729,111,354.80
  5. Step 5: Solve for x
    x = 729,111,354.80/42,582.84
  6. Step 6: Final answer
    x = 17,122.19

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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.