Home / 30,393.63-41,962.47-20,849.51

Finding the Fourth Proportional to 30,393.63, 41,962.47 and 20,849.51

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Solution

The fourth proportional to 30,393.63, 41,962.47 and 20,849.51 is: 28,785.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,393.63 : 41,962.47 = 20,849.51 : x
  2. Step 2: Convert to fraction form
    30,393.63/41,962.47 = 20,849.51/x
  3. Step 3: Cross multiply
    30,393.63x = 41,962.47 × 20,849.51
  4. Step 4: Simplify right side
    30,393.63x = 874,896,728.08
  5. Step 5: Solve for x
    x = 874,896,728.08/30,393.63
  6. Step 6: Final answer
    x = 28,785.53

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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.