Home / 30,112.02-45,195.75-15,331.50

Finding the Fourth Proportional to 30,112.02, 45,195.75 and 15,331.50

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Solution

The fourth proportional to 30,112.02, 45,195.75 and 15,331.50 is: 23,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,112.02 : 45,195.75 = 15,331.50 : x
  2. Step 2: Convert to fraction form
    30,112.02/45,195.75 = 15,331.50/x
  3. Step 3: Cross multiply
    30,112.02x = 45,195.75 × 15,331.50
  4. Step 4: Simplify right side
    30,112.02x = 692,918,641.13
  5. Step 5: Solve for x
    x = 692,918,641.13/30,112.02
  6. Step 6: Final answer
    x = 23,011.36

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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.