Home / 29,343.28-40,459.62-21,389.08

Finding the Fourth Proportional to 29,343.28, 40,459.62 and 21,389.08

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Solution

The fourth proportional to 29,343.28, 40,459.62 and 21,389.08 is: 29,492.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,343.28 : 40,459.62 = 21,389.08 : x
  2. Step 2: Convert to fraction form
    29,343.28/40,459.62 = 21,389.08/x
  3. Step 3: Cross multiply
    29,343.28x = 40,459.62 × 21,389.08
  4. Step 4: Simplify right side
    29,343.28x = 865,394,048.95
  5. Step 5: Solve for x
    x = 865,394,048.95/29,343.28
  6. Step 6: Final answer
    x = 29,492.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.