Home / 28,897.21-39,874.14-16,148.79

Finding the Fourth Proportional to 28,897.21, 39,874.14 and 16,148.79

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Solution

The fourth proportional to 28,897.21, 39,874.14 and 16,148.79 is: 22,283.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,897.21 : 39,874.14 = 16,148.79 : x
  2. Step 2: Convert to fraction form
    28,897.21/39,874.14 = 16,148.79/x
  3. Step 3: Cross multiply
    28,897.21x = 39,874.14 × 16,148.79
  4. Step 4: Simplify right side
    28,897.21x = 643,919,113.29
  5. Step 5: Solve for x
    x = 643,919,113.29/28,897.21
  6. Step 6: Final answer
    x = 22,283.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.