Home / 30,378.16-45,568.62-9,316.66

Finding the Fourth Proportional to 30,378.16, 45,568.62 and 9,316.66

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Solution

The fourth proportional to 30,378.16, 45,568.62 and 9,316.66 is: 13,975.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378.16 : 45,568.62 = 9,316.66 : x
  2. Step 2: Convert to fraction form
    30,378.16/45,568.62 = 9,316.66/x
  3. Step 3: Cross multiply
    30,378.16x = 45,568.62 × 9,316.66
  4. Step 4: Simplify right side
    30,378.16x = 424,547,339.21
  5. Step 5: Solve for x
    x = 424,547,339.21/30,378.16
  6. Step 6: Final answer
    x = 13,975.41

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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.