Home / 28,038.54-38,688.36-16,706.64

Finding the Fourth Proportional to 28,038.54, 38,688.36 and 16,706.64

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Solution

The fourth proportional to 28,038.54, 38,688.36 and 16,706.64 is: 23,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.54 : 38,688.36 = 16,706.64 : x
  2. Step 2: Convert to fraction form
    28,038.54/38,688.36 = 16,706.64/x
  3. Step 3: Cross multiply
    28,038.54x = 38,688.36 × 16,706.64
  4. Step 4: Simplify right side
    28,038.54x = 646,352,502.71
  5. Step 5: Solve for x
    x = 646,352,502.71/28,038.54
  6. Step 6: Final answer
    x = 23,052.29

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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.