Home / 47,030.74-70,490.49-20,680.36

Finding the Fourth Proportional to 47,030.74, 70,490.49 and 20,680.36

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Solution

The fourth proportional to 47,030.74, 70,490.49 and 20,680.36 is: 30,996.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,030.74 : 70,490.49 = 20,680.36 : x
  2. Step 2: Convert to fraction form
    47,030.74/70,490.49 = 20,680.36/x
  3. Step 3: Cross multiply
    47,030.74x = 70,490.49 × 20,680.36
  4. Step 4: Simplify right side
    47,030.74x = 1,457,768,709.78
  5. Step 5: Solve for x
    x = 1,457,768,709.78/47,030.74
  6. Step 6: Final answer
    x = 30,996.08

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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.