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Finding the Fourth Proportional to 35,655, 53,440.74 and 12,260.76

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Solution

The fourth proportional to 35,655, 53,440.74 and 12,260.76 is: 18,376.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,655 : 53,440.74 = 12,260.76 : x
  2. Step 2: Convert to fraction form
    35,655/53,440.74 = 12,260.76/x
  3. Step 3: Cross multiply
    35,655x = 53,440.74 × 12,260.76
  4. Step 4: Simplify right side
    35,655x = 655,224,087.36
  5. Step 5: Solve for x
    x = 655,224,087.36/35,655
  6. Step 6: Final answer
    x = 18,376.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.