Home / 21,561.18-32,341.37-11,762.84

Finding the Fourth Proportional to 21,561.18, 32,341.37 and 11,762.84

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Solution

The fourth proportional to 21,561.18, 32,341.37 and 11,762.84 is: 17,644.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561.18 : 32,341.37 = 11,762.84 : x
  2. Step 2: Convert to fraction form
    21,561.18/32,341.37 = 11,762.84/x
  3. Step 3: Cross multiply
    21,561.18x = 32,341.37 × 11,762.84
  4. Step 4: Simplify right side
    21,561.18x = 380,426,140.17
  5. Step 5: Solve for x
    x = 380,426,140.17/21,561.18
  6. Step 6: Final answer
    x = 17,644.03

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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.