Home / 30,581.89-45,884.51-11,875.06

Finding the Fourth Proportional to 30,581.89, 45,884.51 and 11,875.06

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Solution

The fourth proportional to 30,581.89, 45,884.51 and 11,875.06 is: 17,817.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,581.89 : 45,884.51 = 11,875.06 : x
  2. Step 2: Convert to fraction form
    30,581.89/45,884.51 = 11,875.06/x
  3. Step 3: Cross multiply
    30,581.89x = 45,884.51 × 11,875.06
  4. Step 4: Simplify right side
    30,581.89x = 544,881,309.32
  5. Step 5: Solve for x
    x = 544,881,309.32/30,581.89
  6. Step 6: Final answer
    x = 17,817.12

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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.