Home / 28,106.49-38,792.40-18,047.64

Finding the Fourth Proportional to 28,106.49, 38,792.40 and 18,047.64

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Solution

The fourth proportional to 28,106.49, 38,792.40 and 18,047.64 is: 24,909.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106.49 : 38,792.40 = 18,047.64 : x
  2. Step 2: Convert to fraction form
    28,106.49/38,792.40 = 18,047.64/x
  3. Step 3: Cross multiply
    28,106.49x = 38,792.40 × 18,047.64
  4. Step 4: Simplify right side
    28,106.49x = 700,111,269.94
  5. Step 5: Solve for x
    x = 700,111,269.94/28,106.49
  6. Step 6: Final answer
    x = 24,909.24

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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.