Home / 33,038.85-45,631.45-21,758.77

Finding the Fourth Proportional to 33,038.85, 45,631.45 and 21,758.77

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Solution

The fourth proportional to 33,038.85, 45,631.45 and 21,758.77 is: 30,052.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,038.85 : 45,631.45 = 21,758.77 : x
  2. Step 2: Convert to fraction form
    33,038.85/45,631.45 = 21,758.77/x
  3. Step 3: Cross multiply
    33,038.85x = 45,631.45 × 21,758.77
  4. Step 4: Simplify right side
    33,038.85x = 992,883,997.16
  5. Step 5: Solve for x
    x = 992,883,997.16/33,038.85
  6. Step 6: Final answer
    x = 30,052.01

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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.