Home / 30,186.95-45,270.16-10,460.90

Finding the Fourth Proportional to 30,186.95, 45,270.16 and 10,460.90

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Solution

The fourth proportional to 30,186.95, 45,270.16 and 10,460.90 is: 15,687.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.95 : 45,270.16 = 10,460.90 : x
  2. Step 2: Convert to fraction form
    30,186.95/45,270.16 = 10,460.90/x
  3. Step 3: Cross multiply
    30,186.95x = 45,270.16 × 10,460.90
  4. Step 4: Simplify right side
    30,186.95x = 473,566,616.74
  5. Step 5: Solve for x
    x = 473,566,616.74/30,186.95
  6. Step 6: Final answer
    x = 15,687.79

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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.