Home / 30,238.79-45,338.74-14,435.28

Finding the Fourth Proportional to 30,238.79, 45,338.74 and 14,435.28

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Solution

The fourth proportional to 30,238.79, 45,338.74 and 14,435.28 is: 21,643.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.79 : 45,338.74 = 14,435.28 : x
  2. Step 2: Convert to fraction form
    30,238.79/45,338.74 = 14,435.28/x
  3. Step 3: Cross multiply
    30,238.79x = 45,338.74 × 14,435.28
  4. Step 4: Simplify right side
    30,238.79x = 654,477,370.66
  5. Step 5: Solve for x
    x = 654,477,370.66/30,238.79
  6. Step 6: Final answer
    x = 21,643.64

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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.