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Finding the Fourth Proportional to 35,948.92, 49,607.40 and 20,840.40

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Solution

The fourth proportional to 35,948.92, 49,607.40 and 20,840.40 is: 28,758.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,948.92 : 49,607.40 = 20,840.40 : x
  2. Step 2: Convert to fraction form
    35,948.92/49,607.40 = 20,840.40/x
  3. Step 3: Cross multiply
    35,948.92x = 49,607.40 × 20,840.40
  4. Step 4: Simplify right side
    35,948.92x = 1,033,838,058.96
  5. Step 5: Solve for x
    x = 1,033,838,058.96/35,948.92
  6. Step 6: Final answer
    x = 28,758.53

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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.