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Finding the Fourth Proportional to 15,746.40, 23,911.20 and 15,746.40

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Solution

The fourth proportional to 15,746.40, 23,911.20 and 15,746.40 is: 23,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,746.40 : 23,911.20 = 15,746.40 : x
  2. Step 2: Convert to fraction form
    15,746.40/23,911.20 = 15,746.40/x
  3. Step 3: Cross multiply
    15,746.40x = 23,911.20 × 15,746.40
  4. Step 4: Simplify right side
    15,746.40x = 376,515,319.68
  5. Step 5: Solve for x
    x = 376,515,319.68/15,746.40
  6. Step 6: Final answer
    x = 23,911.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.