Home / 42,100.23-63,117.24-21,029.40

Finding the Fourth Proportional to 42,100.23, 63,117.24 and 21,029.40

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Solution

The fourth proportional to 42,100.23, 63,117.24 and 21,029.40 is: 31,527.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,100.23 : 63,117.24 = 21,029.40 : x
  2. Step 2: Convert to fraction form
    42,100.23/63,117.24 = 21,029.40/x
  3. Step 3: Cross multiply
    42,100.23x = 63,117.24 × 21,029.40
  4. Step 4: Simplify right side
    42,100.23x = 1,327,317,686.86
  5. Step 5: Solve for x
    x = 1,327,317,686.86/42,100.23
  6. Step 6: Final answer
    x = 31,527.56

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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.