Home / 21,300.19-31,954.39-9,613.42

Finding the Fourth Proportional to 21,300.19, 31,954.39 and 9,613.42

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Solution

The fourth proportional to 21,300.19, 31,954.39 and 9,613.42 is: 14,421.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,300.19 : 31,954.39 = 9,613.42 : x
  2. Step 2: Convert to fraction form
    21,300.19/31,954.39 = 9,613.42/x
  3. Step 3: Cross multiply
    21,300.19x = 31,954.39 × 9,613.42
  4. Step 4: Simplify right side
    21,300.19x = 307,190,867.99
  5. Step 5: Solve for x
    x = 307,190,867.99/21,300.19
  6. Step 6: Final answer
    x = 14,421.98

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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.