Home / 19,681.92-27,152.64-18,329.76

Finding the Fourth Proportional to 19,681.92, 27,152.64 and 18,329.76

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Solution

The fourth proportional to 19,681.92, 27,152.64 and 18,329.76 is: 25,287.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.92 : 27,152.64 = 18,329.76 : x
  2. Step 2: Convert to fraction form
    19,681.92/27,152.64 = 18,329.76/x
  3. Step 3: Cross multiply
    19,681.92x = 27,152.64 × 18,329.76
  4. Step 4: Simplify right side
    19,681.92x = 497,701,374.57
  5. Step 5: Solve for x
    x = 497,701,374.57/19,681.92
  6. Step 6: Final answer
    x = 25,287.24

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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.