Home / 28,314.04-39,074.12-16,378.15

Finding the Fourth Proportional to 28,314.04, 39,074.12 and 16,378.15

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Solution

The fourth proportional to 28,314.04, 39,074.12 and 16,378.15 is: 22,602.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.04 : 39,074.12 = 16,378.15 : x
  2. Step 2: Convert to fraction form
    28,314.04/39,074.12 = 16,378.15/x
  3. Step 3: Cross multiply
    28,314.04x = 39,074.12 × 16,378.15
  4. Step 4: Simplify right side
    28,314.04x = 639,961,798.48
  5. Step 5: Solve for x
    x = 639,961,798.48/28,314.04
  6. Step 6: Final answer
    x = 22,602.28

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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.