Home / 27,748.69-38,292.40-15,172.63

Finding the Fourth Proportional to 27,748.69, 38,292.40 and 15,172.63

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Solution

The fourth proportional to 27,748.69, 38,292.40 and 15,172.63 is: 20,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,748.69 : 38,292.40 = 15,172.63 : x
  2. Step 2: Convert to fraction form
    27,748.69/38,292.40 = 15,172.63/x
  3. Step 3: Cross multiply
    27,748.69x = 38,292.40 × 15,172.63
  4. Step 4: Simplify right side
    27,748.69x = 580,996,417.01
  5. Step 5: Solve for x
    x = 580,996,417.01/27,748.69
  6. Step 6: Final answer
    x = 20,937.80

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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.