Home / 30,068.84-45,090.90-9,001.44

Finding the Fourth Proportional to 30,068.84, 45,090.90 and 9,001.44

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Solution

The fourth proportional to 30,068.84, 45,090.90 and 9,001.44 is: 13,498.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,068.84 : 45,090.90 = 9,001.44 : x
  2. Step 2: Convert to fraction form
    30,068.84/45,090.90 = 9,001.44/x
  3. Step 3: Cross multiply
    30,068.84x = 45,090.90 × 9,001.44
  4. Step 4: Simplify right side
    30,068.84x = 405,883,030.90
  5. Step 5: Solve for x
    x = 405,883,030.90/30,068.84
  6. Step 6: Final answer
    x = 13,498.46

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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.