Home / 28,398.22-39,188.14-16,465.43

Finding the Fourth Proportional to 28,398.22, 39,188.14 and 16,465.43

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Solution

The fourth proportional to 28,398.22, 39,188.14 and 16,465.43 is: 22,721.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.22 : 39,188.14 = 16,465.43 : x
  2. Step 2: Convert to fraction form
    28,398.22/39,188.14 = 16,465.43/x
  3. Step 3: Cross multiply
    28,398.22x = 39,188.14 × 16,465.43
  4. Step 4: Simplify right side
    28,398.22x = 645,249,632.81
  5. Step 5: Solve for x
    x = 645,249,632.81/28,398.22
  6. Step 6: Final answer
    x = 22,721.48

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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.