Home / 27,306.40-37,659.28-21,328.80

Finding the Fourth Proportional to 27,306.40, 37,659.28 and 21,328.80

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Solution

The fourth proportional to 27,306.40, 37,659.28 and 21,328.80 is: 29,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,306.40 : 37,659.28 = 21,328.80 : x
  2. Step 2: Convert to fraction form
    27,306.40/37,659.28 = 21,328.80/x
  3. Step 3: Cross multiply
    27,306.40x = 37,659.28 × 21,328.80
  4. Step 4: Simplify right side
    27,306.40x = 803,227,251.26
  5. Step 5: Solve for x
    x = 803,227,251.26/27,306.40
  6. Step 6: Final answer
    x = 29,415.35

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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.