Home / 21,051.32-29,050.92-11,620.50

Finding the Fourth Proportional to 21,051.32, 29,050.92 and 11,620.50

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Solution

The fourth proportional to 21,051.32, 29,050.92 and 11,620.50 is: 16,036.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.32 : 29,050.92 = 11,620.50 : x
  2. Step 2: Convert to fraction form
    21,051.32/29,050.92 = 11,620.50/x
  3. Step 3: Cross multiply
    21,051.32x = 29,050.92 × 11,620.50
  4. Step 4: Simplify right side
    21,051.32x = 337,586,215.86
  5. Step 5: Solve for x
    x = 337,586,215.86/21,051.32
  6. Step 6: Final answer
    x = 16,036.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.