Home / 28,663.35-42,971.32-10,890.33

Finding the Fourth Proportional to 28,663.35, 42,971.32 and 10,890.33

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Solution

The fourth proportional to 28,663.35, 42,971.32 and 10,890.33 is: 16,326.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.35 : 42,971.32 = 10,890.33 : x
  2. Step 2: Convert to fraction form
    28,663.35/42,971.32 = 10,890.33/x
  3. Step 3: Cross multiply
    28,663.35x = 42,971.32 × 10,890.33
  4. Step 4: Simplify right side
    28,663.35x = 467,971,855.34
  5. Step 5: Solve for x
    x = 467,971,855.34/28,663.35
  6. Step 6: Final answer
    x = 16,326.49

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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.