Home / 28,176.89-38,875.29-16,238.60

Finding the Fourth Proportional to 28,176.89, 38,875.29 and 16,238.60

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Solution

The fourth proportional to 28,176.89, 38,875.29 and 16,238.60 is: 22,404.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.89 : 38,875.29 = 16,238.60 : x
  2. Step 2: Convert to fraction form
    28,176.89/38,875.29 = 16,238.60/x
  3. Step 3: Cross multiply
    28,176.89x = 38,875.29 × 16,238.60
  4. Step 4: Simplify right side
    28,176.89x = 631,280,089.82
  5. Step 5: Solve for x
    x = 631,280,089.82/28,176.89
  6. Step 6: Final answer
    x = 22,404.18

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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.