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Finding the Fourth Proportional to 36,686.70, 55,030.05 and 8,984.70

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Solution

The fourth proportional to 36,686.70, 55,030.05 and 8,984.70 is: 13,477.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,686.70 : 55,030.05 = 8,984.70 : x
  2. Step 2: Convert to fraction form
    36,686.70/55,030.05 = 8,984.70/x
  3. Step 3: Cross multiply
    36,686.70x = 55,030.05 × 8,984.70
  4. Step 4: Simplify right side
    36,686.70x = 494,428,490.24
  5. Step 5: Solve for x
    x = 494,428,490.24/36,686.70
  6. Step 6: Final answer
    x = 13,477.05

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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.