Home / 21,426.45-29,564.98-13,463.07

Finding the Fourth Proportional to 21,426.45, 29,564.98 and 13,463.07

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Solution

The fourth proportional to 21,426.45, 29,564.98 and 13,463.07 is: 18,576.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.45 : 29,564.98 = 13,463.07 : x
  2. Step 2: Convert to fraction form
    21,426.45/29,564.98 = 13,463.07/x
  3. Step 3: Cross multiply
    21,426.45x = 29,564.98 × 13,463.07
  4. Step 4: Simplify right side
    21,426.45x = 398,035,395.29
  5. Step 5: Solve for x
    x = 398,035,395.29/21,426.45
  6. Step 6: Final answer
    x = 18,576.82

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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.