Home / 19,279.22-26,639.96-15,040.89

Finding the Fourth Proportional to 19,279.22, 26,639.96 and 15,040.89

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Solution

The fourth proportional to 19,279.22, 26,639.96 and 15,040.89 is: 20,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,279.22 : 26,639.96 = 15,040.89 : x
  2. Step 2: Convert to fraction form
    19,279.22/26,639.96 = 15,040.89/x
  3. Step 3: Cross multiply
    19,279.22x = 26,639.96 × 15,040.89
  4. Step 4: Simplify right side
    19,279.22x = 400,688,632.76
  5. Step 5: Solve for x
    x = 400,688,632.76/19,279.22
  6. Step 6: Final answer
    x = 20,783.45

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Half 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.