Home / 42,021.77-63,040.14-13,943.51

Finding the Fourth Proportional to 42,021.77, 63,040.14 and 13,943.51

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Solution

The fourth proportional to 42,021.77, 63,040.14 and 13,943.51 is: 20,917.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,021.77 : 63,040.14 = 13,943.51 : x
  2. Step 2: Convert to fraction form
    42,021.77/63,040.14 = 13,943.51/x
  3. Step 3: Cross multiply
    42,021.77x = 63,040.14 × 13,943.51
  4. Step 4: Simplify right side
    42,021.77x = 879,000,507.29
  5. Step 5: Solve for x
    x = 879,000,507.29/42,021.77
  6. Step 6: Final answer
    x = 20,917.74

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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.