Home / 42,045.99-58,034.74-28,427.81

Finding the Fourth Proportional to 42,045.99, 58,034.74 and 28,427.81

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Solution

The fourth proportional to 42,045.99, 58,034.74 and 28,427.81 is: 39,238.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,045.99 : 58,034.74 = 28,427.81 : x
  2. Step 2: Convert to fraction form
    42,045.99/58,034.74 = 28,427.81/x
  3. Step 3: Cross multiply
    42,045.99x = 58,034.74 × 28,427.81
  4. Step 4: Simplify right side
    42,045.99x = 1,649,800,620.60
  5. Step 5: Solve for x
    x = 1,649,800,620.60/42,045.99
  6. Step 6: Final answer
    x = 39,238.01

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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.