Home / 28,754.48-39,681.96-16,179.68

Finding the Fourth Proportional to 28,754.48, 39,681.96 and 16,179.68

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Solution

The fourth proportional to 28,754.48, 39,681.96 and 16,179.68 is: 22,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.48 : 39,681.96 = 16,179.68 : x
  2. Step 2: Convert to fraction form
    28,754.48/39,681.96 = 16,179.68/x
  3. Step 3: Cross multiply
    28,754.48x = 39,681.96 × 16,179.68
  4. Step 4: Simplify right side
    28,754.48x = 642,041,414.57
  5. Step 5: Solve for x
    x = 642,041,414.57/28,754.48
  6. Step 6: Final answer
    x = 22,328.40

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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.