Home / 69,031.08-103,546.89-21,000.24

Finding the Fourth Proportional to 69,031.08, 103,546.89 and 21,000.24

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Solution

The fourth proportional to 69,031.08, 103,546.89 and 21,000.24 is: 31,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,031.08 : 103,546.89 = 21,000.24 : x
  2. Step 2: Convert to fraction form
    69,031.08/103,546.89 = 21,000.24/x
  3. Step 3: Cross multiply
    69,031.08x = 103,546.89 × 21,000.24
  4. Step 4: Simplify right side
    69,031.08x = 2,174,509,541.25
  5. Step 5: Solve for x
    x = 2,174,509,541.25/69,031.08
  6. Step 6: Final answer
    x = 31,500.44

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1.5x scale

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.