Home / 21,320.48-31,980.80-6,529.34

Finding the Fourth Proportional to 21,320.48, 31,980.80 and 6,529.34

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Solution

The fourth proportional to 21,320.48, 31,980.80 and 6,529.34 is: 9,794.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320.48 : 31,980.80 = 6,529.34 : x
  2. Step 2: Convert to fraction form
    21,320.48/31,980.80 = 6,529.34/x
  3. Step 3: Cross multiply
    21,320.48x = 31,980.80 × 6,529.34
  4. Step 4: Simplify right side
    21,320.48x = 208,813,516.67
  5. Step 5: Solve for x
    x = 208,813,516.67/21,320.48
  6. Step 6: Final answer
    x = 9,794.03

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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.