Home / 28,988.21-43,472.06-13,788.98

Finding the Fourth Proportional to 28,988.21, 43,472.06 and 13,788.98

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Solution

The fourth proportional to 28,988.21, 43,472.06 and 13,788.98 is: 20,678.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.21 : 43,472.06 = 13,788.98 : x
  2. Step 2: Convert to fraction form
    28,988.21/43,472.06 = 13,788.98/x
  3. Step 3: Cross multiply
    28,988.21x = 43,472.06 × 13,788.98
  4. Step 4: Simplify right side
    28,988.21x = 599,435,079.59
  5. Step 5: Solve for x
    x = 599,435,079.59/28,988.21
  6. Step 6: Final answer
    x = 20,678.59

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1.5x scale

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.