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Finding the Fourth Proportional to 28,225.54, 38,953 and 15,650.29

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Solution

The fourth proportional to 28,225.54, 38,953 and 15,650.29 is: 21,598.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.54 : 38,953 = 15,650.29 : x
  2. Step 2: Convert to fraction form
    28,225.54/38,953 = 15,650.29/x
  3. Step 3: Cross multiply
    28,225.54x = 38,953 × 15,650.29
  4. Step 4: Simplify right side
    28,225.54x = 609,625,746.37
  5. Step 5: Solve for x
    x = 609,625,746.37/28,225.54
  6. Step 6: Final answer
    x = 21,598.37

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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.