Home / 16,920.36-23,335.93-12,681.37

Finding the Fourth Proportional to 16,920.36, 23,335.93 and 12,681.37

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Solution

The fourth proportional to 16,920.36, 23,335.93 and 12,681.37 is: 17,489.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.36 : 23,335.93 = 12,681.37 : x
  2. Step 2: Convert to fraction form
    16,920.36/23,335.93 = 12,681.37/x
  3. Step 3: Cross multiply
    16,920.36x = 23,335.93 × 12,681.37
  4. Step 4: Simplify right side
    16,920.36x = 295,931,607.65
  5. Step 5: Solve for x
    x = 295,931,607.65/16,920.36
  6. Step 6: Final answer
    x = 17,489.68

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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.