Home / 42,404.54-63,547.97-18,676.51

Finding the Fourth Proportional to 42,404.54, 63,547.97 and 18,676.51

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Solution

The fourth proportional to 42,404.54, 63,547.97 and 18,676.51 is: 27,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,404.54 : 63,547.97 = 18,676.51 : x
  2. Step 2: Convert to fraction form
    42,404.54/63,547.97 = 18,676.51/x
  3. Step 3: Cross multiply
    42,404.54x = 63,547.97 × 18,676.51
  4. Step 4: Simplify right side
    42,404.54x = 1,186,854,044.93
  5. Step 5: Solve for x
    x = 1,186,854,044.93/42,404.54
  6. Step 6: Final answer
    x = 27,988.84

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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.