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Finding the Fourth Proportional to 30,537.34, 45,810.36 and 9,479.20

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Solution

The fourth proportional to 30,537.34, 45,810.36 and 9,479.20 is: 14,220.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,537.34 : 45,810.36 = 9,479.20 : x
  2. Step 2: Convert to fraction form
    30,537.34/45,810.36 = 9,479.20/x
  3. Step 3: Cross multiply
    30,537.34x = 45,810.36 × 9,479.20
  4. Step 4: Simplify right side
    30,537.34x = 434,245,564.51
  5. Step 5: Solve for x
    x = 434,245,564.51/30,537.34
  6. Step 6: Final answer
    x = 14,220.15

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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.