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Finding the Fourth Proportional to 27,053.40, 40,628.70 and 19,666.20

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Solution

The fourth proportional to 27,053.40, 40,628.70 and 19,666.20 is: 29,534.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,053.40 : 40,628.70 = 19,666.20 : x
  2. Step 2: Convert to fraction form
    27,053.40/40,628.70 = 19,666.20/x
  3. Step 3: Cross multiply
    27,053.40x = 40,628.70 × 19,666.20
  4. Step 4: Simplify right side
    27,053.40x = 799,012,139.94
  5. Step 5: Solve for x
    x = 799,012,139.94/27,053.40
  6. Step 6: Final answer
    x = 29,534.63

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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.