Home / 19,445.76-26,871.48-15,907.68

Finding the Fourth Proportional to 19,445.76, 26,871.48 and 15,907.68

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Solution

The fourth proportional to 19,445.76, 26,871.48 and 15,907.68 is: 21,982.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,445.76 : 26,871.48 = 15,907.68 : x
  2. Step 2: Convert to fraction form
    19,445.76/26,871.48 = 15,907.68/x
  3. Step 3: Cross multiply
    19,445.76x = 26,871.48 × 15,907.68
  4. Step 4: Simplify right side
    19,445.76x = 427,462,904.97
  5. Step 5: Solve for x
    x = 427,462,904.97/19,445.76
  6. Step 6: Final answer
    x = 21,982.32

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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.