Home / 30,291.54-45,444.50-9,515.04

Finding the Fourth Proportional to 30,291.54, 45,444.50 and 9,515.04

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Solution

The fourth proportional to 30,291.54, 45,444.50 and 9,515.04 is: 14,274.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291.54 : 45,444.50 = 9,515.04 : x
  2. Step 2: Convert to fraction form
    30,291.54/45,444.50 = 9,515.04/x
  3. Step 3: Cross multiply
    30,291.54x = 45,444.50 × 9,515.04
  4. Step 4: Simplify right side
    30,291.54x = 432,406,235.28
  5. Step 5: Solve for x
    x = 432,406,235.28/30,291.54
  6. Step 6: Final answer
    x = 14,274.82

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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.