Home / 28,289.81-42,439.32-9,571.01

Finding the Fourth Proportional to 28,289.81, 42,439.32 and 9,571.01

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Solution

The fourth proportional to 28,289.81, 42,439.32 and 9,571.01 is: 14,358.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.81 : 42,439.32 = 9,571.01 : x
  2. Step 2: Convert to fraction form
    28,289.81/42,439.32 = 9,571.01/x
  3. Step 3: Cross multiply
    28,289.81x = 42,439.32 × 9,571.01
  4. Step 4: Simplify right side
    28,289.81x = 406,186,943.92
  5. Step 5: Solve for x
    x = 406,186,943.92/28,289.81
  6. Step 6: Final answer
    x = 14,358.06

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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.