Home / 23,110.96-31,885.20-13,038.16

Finding the Fourth Proportional to 23,110.96, 31,885.20 and 13,038.16

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Solution

The fourth proportional to 23,110.96, 31,885.20 and 13,038.16 is: 17,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,110.96 : 31,885.20 = 13,038.16 : x
  2. Step 2: Convert to fraction form
    23,110.96/31,885.20 = 13,038.16/x
  3. Step 3: Cross multiply
    23,110.96x = 31,885.20 × 13,038.16
  4. Step 4: Simplify right side
    23,110.96x = 415,724,339.23
  5. Step 5: Solve for x
    x = 415,724,339.23/23,110.96
  6. Step 6: Final answer
    x = 17,988.19

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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.