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Finding the Fourth Proportional to 19,700.70, 27,133.02 and 19,336.20

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Solution

The fourth proportional to 19,700.70, 27,133.02 and 19,336.20 is: 26,631.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,700.70 : 27,133.02 = 19,336.20 : x
  2. Step 2: Convert to fraction form
    19,700.70/27,133.02 = 19,336.20/x
  3. Step 3: Cross multiply
    19,700.70x = 27,133.02 × 19,336.20
  4. Step 4: Simplify right side
    19,700.70x = 524,649,501.32
  5. Step 5: Solve for x
    x = 524,649,501.32/19,700.70
  6. Step 6: Final answer
    x = 26,631.01

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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.