Home / 22,860.48-31,548.36-13,428.96

Finding the Fourth Proportional to 22,860.48, 31,548.36 and 13,428.96

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Solution

The fourth proportional to 22,860.48, 31,548.36 and 13,428.96 is: 18,532.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,860.48 : 31,548.36 = 13,428.96 : x
  2. Step 2: Convert to fraction form
    22,860.48/31,548.36 = 13,428.96/x
  3. Step 3: Cross multiply
    22,860.48x = 31,548.36 × 13,428.96
  4. Step 4: Simplify right side
    22,860.48x = 423,661,664.51
  5. Step 5: Solve for x
    x = 423,661,664.51/22,860.48
  6. Step 6: Final answer
    x = 18,532.49

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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.