Home / 20,530.61-30,795.86-4,948.23

Finding the Fourth Proportional to 20,530.61, 30,795.86 and 4,948.23

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Solution

The fourth proportional to 20,530.61, 30,795.86 and 4,948.23 is: 7,422.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530.61 : 30,795.86 = 4,948.23 : x
  2. Step 2: Convert to fraction form
    20,530.61/30,795.86 = 4,948.23/x
  3. Step 3: Cross multiply
    20,530.61x = 30,795.86 × 4,948.23
  4. Step 4: Simplify right side
    20,530.61x = 152,385,107.63
  5. Step 5: Solve for x
    x = 152,385,107.63/20,530.61
  6. Step 6: Final answer
    x = 7,422.34

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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.