Home / 19,975.16-29,908.09-19,445.78

Finding the Fourth Proportional to 19,975.16, 29,908.09 and 19,445.78

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Solution

The fourth proportional to 19,975.16, 29,908.09 and 19,445.78 is: 29,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.16 : 29,908.09 = 19,445.78 : x
  2. Step 2: Convert to fraction form
    19,975.16/29,908.09 = 19,445.78/x
  3. Step 3: Cross multiply
    19,975.16x = 29,908.09 × 19,445.78
  4. Step 4: Simplify right side
    19,975.16x = 581,586,041.13
  5. Step 5: Solve for x
    x = 581,586,041.13/19,975.16
  6. Step 6: Final answer
    x = 29,115.46

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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.