Home / 21,407.01-32,110.76-9,561.39

Finding the Fourth Proportional to 21,407.01, 32,110.76 and 9,561.39

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Solution

The fourth proportional to 21,407.01, 32,110.76 and 9,561.39 is: 14,342.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407.01 : 32,110.76 = 9,561.39 : x
  2. Step 2: Convert to fraction form
    21,407.01/32,110.76 = 9,561.39/x
  3. Step 3: Cross multiply
    21,407.01x = 32,110.76 × 9,561.39
  4. Step 4: Simplify right side
    21,407.01x = 307,023,291.20
  5. Step 5: Solve for x
    x = 307,023,291.20/21,407.01
  6. Step 6: Final answer
    x = 14,342.18

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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.