Home / 30,307.72-45,311.91-25,679.48

Finding the Fourth Proportional to 30,307.72, 45,311.91 and 25,679.48

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Solution

The fourth proportional to 30,307.72, 45,311.91 and 25,679.48 is: 38,392.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,307.72 : 45,311.91 = 25,679.48 : x
  2. Step 2: Convert to fraction form
    30,307.72/45,311.91 = 25,679.48/x
  3. Step 3: Cross multiply
    30,307.72x = 45,311.91 × 25,679.48
  4. Step 4: Simplify right side
    30,307.72x = 1,163,586,218.63
  5. Step 5: Solve for x
    x = 1,163,586,218.63/30,307.72
  6. Step 6: Final answer
    x = 38,392.40

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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.