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Finding the Fourth Proportional to 30,391.63, 45,573.28 and 9,326.25

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Solution

The fourth proportional to 30,391.63, 45,573.28 and 9,326.25 is: 13,985.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.63 : 45,573.28 = 9,326.25 : x
  2. Step 2: Convert to fraction form
    30,391.63/45,573.28 = 9,326.25/x
  3. Step 3: Cross multiply
    30,391.63x = 45,573.28 × 9,326.25
  4. Step 4: Simplify right side
    30,391.63x = 425,027,802.60
  5. Step 5: Solve for x
    x = 425,027,802.60/30,391.63
  6. Step 6: Final answer
    x = 13,985.03

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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.