Home / 30,331.76-45,495.98-9,271.79

Finding the Fourth Proportional to 30,331.76, 45,495.98 and 9,271.79

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Solution

The fourth proportional to 30,331.76, 45,495.98 and 9,271.79 is: 13,907.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.76 : 45,495.98 = 9,271.79 : x
  2. Step 2: Convert to fraction form
    30,331.76/45,495.98 = 9,271.79/x
  3. Step 3: Cross multiply
    30,331.76x = 45,495.98 × 9,271.79
  4. Step 4: Simplify right side
    30,331.76x = 421,829,205.83
  5. Step 5: Solve for x
    x = 421,829,205.83/30,331.76
  6. Step 6: Final answer
    x = 13,907.18

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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.