Home / 34,768.58-47,981.43-20,438.87

Finding the Fourth Proportional to 34,768.58, 47,981.43 and 20,438.87

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Solution

The fourth proportional to 34,768.58, 47,981.43 and 20,438.87 is: 28,206.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,768.58 : 47,981.43 = 20,438.87 : x
  2. Step 2: Convert to fraction form
    34,768.58/47,981.43 = 20,438.87/x
  3. Step 3: Cross multiply
    34,768.58x = 47,981.43 × 20,438.87
  4. Step 4: Simplify right side
    34,768.58x = 980,685,970.28
  5. Step 5: Solve for x
    x = 980,685,970.28/34,768.58
  6. Step 6: Final answer
    x = 28,206.10

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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.