Home / 30,140.04-45,204.90-7,953.65

Finding the Fourth Proportional to 30,140.04, 45,204.90 and 7,953.65

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Solution

The fourth proportional to 30,140.04, 45,204.90 and 7,953.65 is: 11,929.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,140.04 : 45,204.90 = 7,953.65 : x
  2. Step 2: Convert to fraction form
    30,140.04/45,204.90 = 7,953.65/x
  3. Step 3: Cross multiply
    30,140.04x = 45,204.90 × 7,953.65
  4. Step 4: Simplify right side
    30,140.04x = 359,543,952.89
  5. Step 5: Solve for x
    x = 359,543,952.89/30,140.04
  6. Step 6: Final answer
    x = 11,929.11

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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.