Home / 42,623.23-63,921.01-20,130.43

Finding the Fourth Proportional to 42,623.23, 63,921.01 and 20,130.43

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Solution

The fourth proportional to 42,623.23, 63,921.01 and 20,130.43 is: 30,189.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,623.23 : 63,921.01 = 20,130.43 : x
  2. Step 2: Convert to fraction form
    42,623.23/63,921.01 = 20,130.43/x
  3. Step 3: Cross multiply
    42,623.23x = 63,921.01 × 20,130.43
  4. Step 4: Simplify right side
    42,623.23x = 1,286,757,417.33
  5. Step 5: Solve for x
    x = 1,286,757,417.33/42,623.23
  6. Step 6: Final answer
    x = 30,189.11

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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.