Home / 39,921.95-59,888.39-13,619.63

Finding the Fourth Proportional to 39,921.95, 59,888.39 and 13,619.63

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Solution

The fourth proportional to 39,921.95, 59,888.39 and 13,619.63 is: 20,431.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,921.95 : 59,888.39 = 13,619.63 : x
  2. Step 2: Convert to fraction form
    39,921.95/59,888.39 = 13,619.63/x
  3. Step 3: Cross multiply
    39,921.95x = 59,888.39 × 13,619.63
  4. Step 4: Simplify right side
    39,921.95x = 815,657,713.10
  5. Step 5: Solve for x
    x = 815,657,713.10/39,921.95
  6. Step 6: Final answer
    x = 20,431.31

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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.