Home / 21,026.10-31,539.16-9,933.91

Finding the Fourth Proportional to 21,026.10, 31,539.16 and 9,933.91

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Solution

The fourth proportional to 21,026.10, 31,539.16 and 9,933.91 is: 14,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026.10 : 31,539.16 = 9,933.91 : x
  2. Step 2: Convert to fraction form
    21,026.10/31,539.16 = 9,933.91/x
  3. Step 3: Cross multiply
    21,026.10x = 31,539.16 × 9,933.91
  4. Step 4: Simplify right side
    21,026.10x = 313,307,048.40
  5. Step 5: Solve for x
    x = 313,307,048.40/21,026.10
  6. Step 6: Final answer
    x = 14,900.86

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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.