Home / 28,722.81-43,040.22-19,328.01

Finding the Fourth Proportional to 28,722.81, 43,040.22 and 19,328.01

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Solution

The fourth proportional to 28,722.81, 43,040.22 and 19,328.01 is: 28,962.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.81 : 43,040.22 = 19,328.01 : x
  2. Step 2: Convert to fraction form
    28,722.81/43,040.22 = 19,328.01/x
  3. Step 3: Cross multiply
    28,722.81x = 43,040.22 × 19,328.01
  4. Step 4: Simplify right side
    28,722.81x = 831,881,802.56
  5. Step 5: Solve for x
    x = 831,881,802.56/28,722.81
  6. Step 6: Final answer
    x = 28,962.41

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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.