Home / 28,711.81-43,068.53-7,935.31

Finding the Fourth Proportional to 28,711.81, 43,068.53 and 7,935.31

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Solution

The fourth proportional to 28,711.81, 43,068.53 and 7,935.31 is: 11,903.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711.81 : 43,068.53 = 7,935.31 : x
  2. Step 2: Convert to fraction form
    28,711.81/43,068.53 = 7,935.31/x
  3. Step 3: Cross multiply
    28,711.81x = 43,068.53 × 7,935.31
  4. Step 4: Simplify right side
    28,711.81x = 341,762,136.79
  5. Step 5: Solve for x
    x = 341,762,136.79/28,711.81
  6. Step 6: Final answer
    x = 11,903.19

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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.