Home / 47,205.34-70,783.61-13,921.18

Finding the Fourth Proportional to 47,205.34, 70,783.61 and 13,921.18

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Solution

The fourth proportional to 47,205.34, 70,783.61 and 13,921.18 is: 20,874.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,205.34 : 70,783.61 = 13,921.18 : x
  2. Step 2: Convert to fraction form
    47,205.34/70,783.61 = 13,921.18/x
  3. Step 3: Cross multiply
    47,205.34x = 70,783.61 × 13,921.18
  4. Step 4: Simplify right side
    47,205.34x = 985,391,129.29
  5. Step 5: Solve for x
    x = 985,391,129.29/47,205.34
  6. Step 6: Final answer
    x = 20,874.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.