Home / 21,780.09-32,684.70-9,303.03

Finding the Fourth Proportional to 21,780.09, 32,684.70 and 9,303.03

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Solution

The fourth proportional to 21,780.09, 32,684.70 and 9,303.03 is: 13,960.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,780.09 : 32,684.70 = 9,303.03 : x
  2. Step 2: Convert to fraction form
    21,780.09/32,684.70 = 9,303.03/x
  3. Step 3: Cross multiply
    21,780.09x = 32,684.70 × 9,303.03
  4. Step 4: Simplify right side
    21,780.09x = 304,066,744.64
  5. Step 5: Solve for x
    x = 304,066,744.64/21,780.09
  6. Step 6: Final answer
    x = 13,960.77

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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.