Home / 23,130.30-34,639.53-13,239.60

Finding the Fourth Proportional to 23,130.30, 34,639.53 and 13,239.60

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Solution

The fourth proportional to 23,130.30, 34,639.53 and 13,239.60 is: 19,827.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.30 : 34,639.53 = 13,239.60 : x
  2. Step 2: Convert to fraction form
    23,130.30/34,639.53 = 13,239.60/x
  3. Step 3: Cross multiply
    23,130.30x = 34,639.53 × 13,239.60
  4. Step 4: Simplify right side
    23,130.30x = 458,613,521.39
  5. Step 5: Solve for x
    x = 458,613,521.39/23,130.30
  6. Step 6: Final answer
    x = 19,827.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.