Home / 30,441.41-42,035.87-19,130.51

Finding the Fourth Proportional to 30,441.41, 42,035.87 and 19,130.51

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Solution

The fourth proportional to 30,441.41, 42,035.87 and 19,130.51 is: 26,416.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,441.41 : 42,035.87 = 19,130.51 : x
  2. Step 2: Convert to fraction form
    30,441.41/42,035.87 = 19,130.51/x
  3. Step 3: Cross multiply
    30,441.41x = 42,035.87 × 19,130.51
  4. Step 4: Simplify right side
    30,441.41x = 804,167,325.56
  5. Step 5: Solve for x
    x = 804,167,325.56/30,441.41
  6. Step 6: Final answer
    x = 26,416.89

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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.