Home / 21,043.44-31,558.50-7,000.38

Finding the Fourth Proportional to 21,043.44, 31,558.50 and 7,000.38

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Solution

The fourth proportional to 21,043.44, 31,558.50 and 7,000.38 is: 10,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.44 : 31,558.50 = 7,000.38 : x
  2. Step 2: Convert to fraction form
    21,043.44/31,558.50 = 7,000.38/x
  3. Step 3: Cross multiply
    21,043.44x = 31,558.50 × 7,000.38
  4. Step 4: Simplify right side
    21,043.44x = 220,921,492.23
  5. Step 5: Solve for x
    x = 220,921,492.23/21,043.44
  6. Step 6: Final answer
    x = 10,498.35

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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.