Home / 30,261.72-45,386.10-12,726.84

Finding the Fourth Proportional to 30,261.72, 45,386.10 and 12,726.84

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Solution

The fourth proportional to 30,261.72, 45,386.10 and 12,726.84 is: 19,087.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,261.72 : 45,386.10 = 12,726.84 : x
  2. Step 2: Convert to fraction form
    30,261.72/45,386.10 = 12,726.84/x
  3. Step 3: Cross multiply
    30,261.72x = 45,386.10 × 12,726.84
  4. Step 4: Simplify right side
    30,261.72x = 577,621,632.92
  5. Step 5: Solve for x
    x = 577,621,632.92/30,261.72
  6. Step 6: Final answer
    x = 19,087.53

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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.