Home / 20,530.04-30,795.06-4,947.66

Finding the Fourth Proportional to 20,530.04, 30,795.06 and 4,947.66

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Solution

The fourth proportional to 20,530.04, 30,795.06 and 4,947.66 is: 7,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530.04 : 30,795.06 = 4,947.66 : x
  2. Step 2: Convert to fraction form
    20,530.04/30,795.06 = 4,947.66/x
  3. Step 3: Cross multiply
    20,530.04x = 30,795.06 × 4,947.66
  4. Step 4: Simplify right side
    20,530.04x = 152,363,486.56
  5. Step 5: Solve for x
    x = 152,363,486.56/20,530.04
  6. Step 6: Final answer
    x = 7,421.49

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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.