Home / 30,984.10-46,477.59-10,207.78

Finding the Fourth Proportional to 30,984.10, 46,477.59 and 10,207.78

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Solution

The fourth proportional to 30,984.10, 46,477.59 and 10,207.78 is: 15,312.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,984.10 : 46,477.59 = 10,207.78 : x
  2. Step 2: Convert to fraction form
    30,984.10/46,477.59 = 10,207.78/x
  3. Step 3: Cross multiply
    30,984.10x = 46,477.59 × 10,207.78
  4. Step 4: Simplify right side
    30,984.10x = 474,433,013.65
  5. Step 5: Solve for x
    x = 474,433,013.65/30,984.10
  6. Step 6: Final answer
    x = 15,312.14

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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.