Home / 21,000,475.65-31,500,713.48-15,260,912.85

Finding the Fourth Proportional to 21,000,475.65, 31,500,713.48 and 15,260,912.85

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Solution

The fourth proportional to 21,000,475.65, 31,500,713.48 and 15,260,912.85 is: 22,891,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000,475.65 : 31,500,713.48 = 15,260,912.85 : x
  2. Step 2: Convert to fraction form
    21,000,475.65/31,500,713.48 = 15,260,912.85/x
  3. Step 3: Cross multiply
    21,000,475.65x = 31,500,713.48 × 15,260,912.85
  4. Step 4: Simplify right side
    21,000,475.65x = 480,729,643,054,795.69
  5. Step 5: Solve for x
    x = 480,729,643,054,795.69/21,000,475.65
  6. Step 6: Final answer
    x = 22,891,369.28

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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.