Home / 21,030.49-31,533.91-6,983.00

Finding the Fourth Proportional to 21,030.49, 31,533.91 and 6,983.00

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Solution

The fourth proportional to 21,030.49, 31,533.91 and 6,983.00 is: 10,470.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030.49 : 31,533.91 = 6,983.00 : x
  2. Step 2: Convert to fraction form
    21,030.49/31,533.91 = 6,983.00/x
  3. Step 3: Cross multiply
    21,030.49x = 31,533.91 × 6,983.00
  4. Step 4: Simplify right side
    21,030.49x = 220,201,214.70
  5. Step 5: Solve for x
    x = 220,201,214.70/21,030.49
  6. Step 6: Final answer
    x = 10,470.57

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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.