Home / 32,786.90-45,248.91-18,639.71

Finding the Fourth Proportional to 32,786.90, 45,248.91 and 18,639.71

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Solution

The fourth proportional to 32,786.90, 45,248.91 and 18,639.71 is: 25,724.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,786.90 : 45,248.91 = 18,639.71 : x
  2. Step 2: Convert to fraction form
    32,786.90/45,248.91 = 18,639.71/x
  3. Step 3: Cross multiply
    32,786.90x = 45,248.91 × 18,639.71
  4. Step 4: Simplify right side
    32,786.90x = 843,426,603.44
  5. Step 5: Solve for x
    x = 843,426,603.44/32,786.90
  6. Step 6: Final answer
    x = 25,724.50

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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.