Home / 23,130.48-31,920.48-13,056.96

Finding the Fourth Proportional to 23,130.48, 31,920.48 and 13,056.96

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Solution

The fourth proportional to 23,130.48, 31,920.48 and 13,056.96 is: 18,018.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.48 : 31,920.48 = 13,056.96 : x
  2. Step 2: Convert to fraction form
    23,130.48/31,920.48 = 13,056.96/x
  3. Step 3: Cross multiply
    23,130.48x = 31,920.48 × 13,056.96
  4. Step 4: Simplify right side
    23,130.48x = 416,784,430.54
  5. Step 5: Solve for x
    x = 416,784,430.54/23,130.48
  6. Step 6: Final answer
    x = 18,018.84

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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.