Home / 28,029.24-42,055.08-11,390.55

Finding the Fourth Proportional to 28,029.24, 42,055.08 and 11,390.55

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Solution

The fourth proportional to 28,029.24, 42,055.08 and 11,390.55 is: 17,090.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.24 : 42,055.08 = 11,390.55 : x
  2. Step 2: Convert to fraction form
    28,029.24/42,055.08 = 11,390.55/x
  3. Step 3: Cross multiply
    28,029.24x = 42,055.08 × 11,390.55
  4. Step 4: Simplify right side
    28,029.24x = 479,030,491.49
  5. Step 5: Solve for x
    x = 479,030,491.49/28,029.24
  6. Step 6: Final answer
    x = 17,090.38

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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.