Home / 39,282.71-58,933.29-12,987.45

Finding the Fourth Proportional to 39,282.71, 58,933.29 and 12,987.45

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Solution

The fourth proportional to 39,282.71, 58,933.29 and 12,987.45 is: 19,484.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,282.71 : 58,933.29 = 12,987.45 : x
  2. Step 2: Convert to fraction form
    39,282.71/58,933.29 = 12,987.45/x
  3. Step 3: Cross multiply
    39,282.71x = 58,933.29 × 12,987.45
  4. Step 4: Simplify right side
    39,282.71x = 765,393,157.21
  5. Step 5: Solve for x
    x = 765,393,157.21/39,282.71
  6. Step 6: Final answer
    x = 19,484.22

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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.