Home / 18,688.68-25,823.16-14,942.76

Finding the Fourth Proportional to 18,688.68, 25,823.16 and 14,942.76

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Solution

The fourth proportional to 18,688.68, 25,823.16 and 14,942.76 is: 20,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.68 : 25,823.16 = 14,942.76 : x
  2. Step 2: Convert to fraction form
    18,688.68/25,823.16 = 14,942.76/x
  3. Step 3: Cross multiply
    18,688.68x = 25,823.16 × 14,942.76
  4. Step 4: Simplify right side
    18,688.68x = 385,869,282.32
  5. Step 5: Solve for x
    x = 385,869,282.32/18,688.68
  6. Step 6: Final answer
    x = 20,647.22

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Double scale
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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.