Home / 28,352.43-39,133.13-16,422.35

Finding the Fourth Proportional to 28,352.43, 39,133.13 and 16,422.35

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Solution

The fourth proportional to 28,352.43, 39,133.13 and 16,422.35 is: 22,666.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,352.43 : 39,133.13 = 16,422.35 : x
  2. Step 2: Convert to fraction form
    28,352.43/39,133.13 = 16,422.35/x
  3. Step 3: Cross multiply
    28,352.43x = 39,133.13 × 16,422.35
  4. Step 4: Simplify right side
    28,352.43x = 642,657,679.68
  5. Step 5: Solve for x
    x = 642,657,679.68/28,352.43
  6. Step 6: Final answer
    x = 22,666.76

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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.