Home / 28,044-38,701.20-18,125.28

Finding the Fourth Proportional to 28,044, 38,701.20 and 18,125.28

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Solution

The fourth proportional to 28,044, 38,701.20 and 18,125.28 is: 25,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,044 : 38,701.20 = 18,125.28 : x
  2. Step 2: Convert to fraction form
    28,044/38,701.20 = 18,125.28/x
  3. Step 3: Cross multiply
    28,044x = 38,701.20 × 18,125.28
  4. Step 4: Simplify right side
    28,044x = 701,470,086.34
  5. Step 5: Solve for x
    x = 701,470,086.34/28,044
  6. Step 6: Final answer
    x = 25,013.20

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Double scale
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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.