Home / 39,416.72-54,415.14-30,444.08

Finding the Fourth Proportional to 39,416.72, 54,415.14 and 30,444.08

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Solution

The fourth proportional to 39,416.72, 54,415.14 and 30,444.08 is: 42,028.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,416.72 : 54,415.14 = 30,444.08 : x
  2. Step 2: Convert to fraction form
    39,416.72/54,415.14 = 30,444.08/x
  3. Step 3: Cross multiply
    39,416.72x = 54,415.14 × 30,444.08
  4. Step 4: Simplify right side
    39,416.72x = 1,656,618,875.37
  5. Step 5: Solve for x
    x = 1,656,618,875.37/39,416.72
  6. Step 6: Final answer
    x = 42,028.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.