Home / 30,200.31-45,300.94-9,140.58

Finding the Fourth Proportional to 30,200.31, 45,300.94 and 9,140.58

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Solution

The fourth proportional to 30,200.31, 45,300.94 and 9,140.58 is: 13,711.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,200.31 : 45,300.94 = 9,140.58 : x
  2. Step 2: Convert to fraction form
    30,200.31/45,300.94 = 9,140.58/x
  3. Step 3: Cross multiply
    30,200.31x = 45,300.94 × 9,140.58
  4. Step 4: Simplify right side
    30,200.31x = 414,076,843.29
  5. Step 5: Solve for x
    x = 414,076,843.29/30,200.31
  6. Step 6: Final answer
    x = 13,711.01

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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.