Home / 30,047.40-45,074.52-8,988.66

Finding the Fourth Proportional to 30,047.40, 45,074.52 and 8,988.66

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Solution

The fourth proportional to 30,047.40, 45,074.52 and 8,988.66 is: 13,484.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,047.40 : 45,074.52 = 8,988.66 : x
  2. Step 2: Convert to fraction form
    30,047.40/45,074.52 = 8,988.66/x
  3. Step 3: Cross multiply
    30,047.40x = 45,074.52 × 8,988.66
  4. Step 4: Simplify right side
    30,047.40x = 405,159,534.94
  5. Step 5: Solve for x
    x = 405,159,534.94/30,047.40
  6. Step 6: Final answer
    x = 13,484.01

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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.