Home / 30,043.36-45,078.21-14,259.79

Finding the Fourth Proportional to 30,043.36, 45,078.21 and 14,259.79

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Solution

The fourth proportional to 30,043.36, 45,078.21 and 14,259.79 is: 21,395.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,043.36 : 45,078.21 = 14,259.79 : x
  2. Step 2: Convert to fraction form
    30,043.36/45,078.21 = 14,259.79/x
  3. Step 3: Cross multiply
    30,043.36x = 45,078.21 × 14,259.79
  4. Step 4: Simplify right side
    30,043.36x = 642,805,808.18
  5. Step 5: Solve for x
    x = 642,805,808.18/30,043.36
  6. Step 6: Final answer
    x = 21,395.94

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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.