Home / 21,551.18-32,330.75-9,705.23

Finding the Fourth Proportional to 21,551.18, 32,330.75 and 9,705.23

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Solution

The fourth proportional to 21,551.18, 32,330.75 and 9,705.23 is: 14,559.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.18 : 32,330.75 = 9,705.23 : x
  2. Step 2: Convert to fraction form
    21,551.18/32,330.75 = 9,705.23/x
  3. Step 3: Cross multiply
    21,551.18x = 32,330.75 × 9,705.23
  4. Step 4: Simplify right side
    21,551.18x = 313,777,457.74
  5. Step 5: Solve for x
    x = 313,777,457.74/21,551.18
  6. Step 6: Final answer
    x = 14,559.64

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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.