Home / 30,080.48-45,106.56-9,012.40

Finding the Fourth Proportional to 30,080.48, 45,106.56 and 9,012.40

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Solution

The fourth proportional to 30,080.48, 45,106.56 and 9,012.40 is: 13,514.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,080.48 : 45,106.56 = 9,012.40 : x
  2. Step 2: Convert to fraction form
    30,080.48/45,106.56 = 9,012.40/x
  3. Step 3: Cross multiply
    30,080.48x = 45,106.56 × 9,012.40
  4. Step 4: Simplify right side
    30,080.48x = 406,518,361.34
  5. Step 5: Solve for x
    x = 406,518,361.34/30,080.48
  6. Step 6: Final answer
    x = 13,514.36

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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.