Home / 21,426.26-29,569.88-12,353.10

Finding the Fourth Proportional to 21,426.26, 29,569.88 and 12,353.10

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Solution

The fourth proportional to 21,426.26, 29,569.88 and 12,353.10 is: 17,048.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.26 : 29,569.88 = 12,353.10 : x
  2. Step 2: Convert to fraction form
    21,426.26/29,569.88 = 12,353.10/x
  3. Step 3: Cross multiply
    21,426.26x = 29,569.88 × 12,353.10
  4. Step 4: Simplify right side
    21,426.26x = 365,279,715.51
  5. Step 5: Solve for x
    x = 365,279,715.51/21,426.26
  6. Step 6: Final answer
    x = 17,048.22

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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.