Home / 30,505.23-42,075.52-27,995.45

Finding the Fourth Proportional to 30,505.23, 42,075.52 and 27,995.45

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Solution

The fourth proportional to 30,505.23, 42,075.52 and 27,995.45 is: 38,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,505.23 : 42,075.52 = 27,995.45 : x
  2. Step 2: Convert to fraction form
    30,505.23/42,075.52 = 27,995.45/x
  3. Step 3: Cross multiply
    30,505.23x = 42,075.52 × 27,995.45
  4. Step 4: Simplify right side
    30,505.23x = 1,177,922,836.02
  5. Step 5: Solve for x
    x = 1,177,922,836.02/30,505.23
  6. Step 6: Final answer
    x = 38,613.80

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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.