Home / 30,040.09-45,030.70-16,719.45

Finding the Fourth Proportional to 30,040.09, 45,030.70 and 16,719.45

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Solution

The fourth proportional to 30,040.09, 45,030.70 and 16,719.45 is: 25,062.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,040.09 : 45,030.70 = 16,719.45 : x
  2. Step 2: Convert to fraction form
    30,040.09/45,030.70 = 16,719.45/x
  3. Step 3: Cross multiply
    30,040.09x = 45,030.70 × 16,719.45
  4. Step 4: Simplify right side
    30,040.09x = 752,888,537.12
  5. Step 5: Solve for x
    x = 752,888,537.12/30,040.09
  6. Step 6: Final answer
    x = 25,062.79

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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.