Home / 19,618.62-26,955.54-15,632.81

Finding the Fourth Proportional to 19,618.62, 26,955.54 and 15,632.81

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Solution

The fourth proportional to 19,618.62, 26,955.54 and 15,632.81 is: 21,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,618.62 : 26,955.54 = 15,632.81 : x
  2. Step 2: Convert to fraction form
    19,618.62/26,955.54 = 15,632.81/x
  3. Step 3: Cross multiply
    19,618.62x = 26,955.54 × 15,632.81
  4. Step 4: Simplify right side
    19,618.62x = 421,390,801.57
  5. Step 5: Solve for x
    x = 421,390,801.57/19,618.62
  6. Step 6: Final answer
    x = 21,479.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.