Home / 28,501.96-42,729.88-11,874.49

Finding the Fourth Proportional to 28,501.96, 42,729.88 and 11,874.49

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Solution

The fourth proportional to 28,501.96, 42,729.88 and 11,874.49 is: 17,802.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.96 : 42,729.88 = 11,874.49 : x
  2. Step 2: Convert to fraction form
    28,501.96/42,729.88 = 11,874.49/x
  3. Step 3: Cross multiply
    28,501.96x = 42,729.88 × 11,874.49
  4. Step 4: Simplify right side
    28,501.96x = 507,395,532.76
  5. Step 5: Solve for x
    x = 507,395,532.76/28,501.96
  6. Step 6: Final answer
    x = 17,802.13

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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.