Home / 30,455.63-42,040.22-22,923.75

Finding the Fourth Proportional to 30,455.63, 42,040.22 and 22,923.75

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Solution

The fourth proportional to 30,455.63, 42,040.22 and 22,923.75 is: 31,643.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.63 : 42,040.22 = 22,923.75 : x
  2. Step 2: Convert to fraction form
    30,455.63/42,040.22 = 22,923.75/x
  3. Step 3: Cross multiply
    30,455.63x = 42,040.22 × 22,923.75
  4. Step 4: Simplify right side
    30,455.63x = 963,719,378.61
  5. Step 5: Solve for x
    x = 963,719,378.61/30,455.63
  6. Step 6: Final answer
    x = 31,643.40

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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.