Home / 28,723.81-43,041.72-19,329.01

Finding the Fourth Proportional to 28,723.81, 43,041.72 and 19,329.01

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Solution

The fourth proportional to 28,723.81, 43,041.72 and 19,329.01 is: 28,963.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.81 : 43,041.72 = 19,329.01 : x
  2. Step 2: Convert to fraction form
    28,723.81/43,041.72 = 19,329.01/x
  3. Step 3: Cross multiply
    28,723.81x = 43,041.72 × 19,329.01
  4. Step 4: Simplify right side
    28,723.81x = 831,953,836.30
  5. Step 5: Solve for x
    x = 831,953,836.30/28,723.81
  6. Step 6: Final answer
    x = 28,963.91

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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.