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Finding the Fourth Proportional to 35,440.64, 48,888.64 and 20,533.76

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Solution

The fourth proportional to 35,440.64, 48,888.64 and 20,533.76 is: 28,325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,440.64 : 48,888.64 = 20,533.76 : x
  2. Step 2: Convert to fraction form
    35,440.64/48,888.64 = 20,533.76/x
  3. Step 3: Cross multiply
    35,440.64x = 48,888.64 × 20,533.76
  4. Step 4: Simplify right side
    35,440.64x = 1,003,867,600.49
  5. Step 5: Solve for x
    x = 1,003,867,600.49/35,440.64
  6. Step 6: Final answer
    x = 28,325.32

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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.