Home / 47,846.68-66,021.36-28,722.40

Finding the Fourth Proportional to 47,846.68, 66,021.36 and 28,722.40

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Solution

The fourth proportional to 47,846.68, 66,021.36 and 28,722.40 is: 39,632.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,846.68 : 66,021.36 = 28,722.40 : x
  2. Step 2: Convert to fraction form
    47,846.68/66,021.36 = 28,722.40/x
  3. Step 3: Cross multiply
    47,846.68x = 66,021.36 × 28,722.40
  4. Step 4: Simplify right side
    47,846.68x = 1,896,291,910.46
  5. Step 5: Solve for x
    x = 1,896,291,910.46/47,846.68
  6. Step 6: Final answer
    x = 39,632.67

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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.