Home / 39,642.58-59,464.20-31,725.40

Finding the Fourth Proportional to 39,642.58, 59,464.20 and 31,725.40

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Solution

The fourth proportional to 39,642.58, 59,464.20 and 31,725.40 is: 47,588.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,642.58 : 59,464.20 = 31,725.40 : x
  2. Step 2: Convert to fraction form
    39,642.58/59,464.20 = 31,725.40/x
  3. Step 3: Cross multiply
    39,642.58x = 59,464.20 × 31,725.40
  4. Step 4: Simplify right side
    39,642.58x = 1,886,525,530.68
  5. Step 5: Solve for x
    x = 1,886,525,530.68/39,642.58
  6. Step 6: Final answer
    x = 47,588.36

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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.