Home / 30,040.08-45,061.16-10,318.48

Finding the Fourth Proportional to 30,040.08, 45,061.16 and 10,318.48

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Solution

The fourth proportional to 30,040.08, 45,061.16 and 10,318.48 is: 15,478.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,040.08 : 45,061.16 = 10,318.48 : x
  2. Step 2: Convert to fraction form
    30,040.08/45,061.16 = 10,318.48/x
  3. Step 3: Cross multiply
    30,040.08x = 45,061.16 × 10,318.48
  4. Step 4: Simplify right side
    30,040.08x = 464,962,678.24
  5. Step 5: Solve for x
    x = 464,962,678.24/30,040.08
  6. Step 6: Final answer
    x = 15,478.08

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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.