Home / 34,724.90-47,920.21-18,809.39

Finding the Fourth Proportional to 34,724.90, 47,920.21 and 18,809.39

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Solution

The fourth proportional to 34,724.90, 47,920.21 and 18,809.39 is: 25,956.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,724.90 : 47,920.21 = 18,809.39 : x
  2. Step 2: Convert to fraction form
    34,724.90/47,920.21 = 18,809.39/x
  3. Step 3: Cross multiply
    34,724.90x = 47,920.21 × 18,809.39
  4. Step 4: Simplify right side
    34,724.90x = 901,349,856.77
  5. Step 5: Solve for x
    x = 901,349,856.77/34,724.90
  6. Step 6: Final answer
    x = 25,956.87

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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.