Home / 21,259.99-31,894.58-6,470.07

Finding the Fourth Proportional to 21,259.99, 31,894.58 and 6,470.07

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Solution

The fourth proportional to 21,259.99, 31,894.58 and 6,470.07 is: 9,706.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259.99 : 31,894.58 = 6,470.07 : x
  2. Step 2: Convert to fraction form
    21,259.99/31,894.58 = 6,470.07/x
  3. Step 3: Cross multiply
    21,259.99x = 31,894.58 × 6,470.07
  4. Step 4: Simplify right side
    21,259.99x = 206,360,165.22
  5. Step 5: Solve for x
    x = 206,360,165.22/21,259.99
  6. Step 6: Final answer
    x = 9,706.50

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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.