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Finding the Fourth Proportional to 35,477.71, 48,953.91 and 20,371.03

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Solution

The fourth proportional to 35,477.71, 48,953.91 and 20,371.03 is: 28,108.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,477.71 : 48,953.91 = 20,371.03 : x
  2. Step 2: Convert to fraction form
    35,477.71/48,953.91 = 20,371.03/x
  3. Step 3: Cross multiply
    35,477.71x = 48,953.91 × 20,371.03
  4. Step 4: Simplify right side
    35,477.71x = 997,241,569.23
  5. Step 5: Solve for x
    x = 997,241,569.23/35,477.71
  6. Step 6: Final answer
    x = 28,108.96

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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.