Home / 21,242.34-29,314.80-11,683.26

Finding the Fourth Proportional to 21,242.34, 29,314.80 and 11,683.26

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Solution

The fourth proportional to 21,242.34, 29,314.80 and 11,683.26 is: 16,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,242.34 : 29,314.80 = 11,683.26 : x
  2. Step 2: Convert to fraction form
    21,242.34/29,314.80 = 11,683.26/x
  3. Step 3: Cross multiply
    21,242.34x = 29,314.80 × 11,683.26
  4. Step 4: Simplify right side
    21,242.34x = 342,492,430.25
  5. Step 5: Solve for x
    x = 342,492,430.25/21,242.34
  6. Step 6: Final answer
    x = 16,123.10

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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.