Home / 28,677.66-42,999.75-11,126.99

Finding the Fourth Proportional to 28,677.66, 42,999.75 and 11,126.99

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Solution

The fourth proportional to 28,677.66, 42,999.75 and 11,126.99 is: 16,683.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.66 : 42,999.75 = 11,126.99 : x
  2. Step 2: Convert to fraction form
    28,677.66/42,999.75 = 11,126.99/x
  3. Step 3: Cross multiply
    28,677.66x = 42,999.75 × 11,126.99
  4. Step 4: Simplify right side
    28,677.66x = 478,457,788.25
  5. Step 5: Solve for x
    x = 478,457,788.25/28,677.66
  6. Step 6: Final answer
    x = 16,683.99

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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.