Home / 30,632.55-42,241.80-28,846.68

Finding the Fourth Proportional to 30,632.55, 42,241.80 and 28,846.68

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Solution

The fourth proportional to 30,632.55, 42,241.80 and 28,846.68 is: 39,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,632.55 : 42,241.80 = 28,846.68 : x
  2. Step 2: Convert to fraction form
    30,632.55/42,241.80 = 28,846.68/x
  3. Step 3: Cross multiply
    30,632.55x = 42,241.80 × 28,846.68
  4. Step 4: Simplify right side
    30,632.55x = 1,218,535,687.22
  5. Step 5: Solve for x
    x = 1,218,535,687.22/30,632.55
  6. Step 6: Final answer
    x = 39,779.11

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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.