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Finding the Fourth Proportional to 29,071.17, 40,130.39 and 19,652.49

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Solution

The fourth proportional to 29,071.17, 40,130.39 and 19,652.49 is: 27,128.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,071.17 : 40,130.39 = 19,652.49 : x
  2. Step 2: Convert to fraction form
    29,071.17/40,130.39 = 19,652.49/x
  3. Step 3: Cross multiply
    29,071.17x = 40,130.39 × 19,652.49
  4. Step 4: Simplify right side
    29,071.17x = 788,662,137.30
  5. Step 5: Solve for x
    x = 788,662,137.30/29,071.17
  6. Step 6: Final answer
    x = 27,128.67

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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.