Home / 22,815.36-31,460.40-14,842.80

Finding the Fourth Proportional to 22,815.36, 31,460.40 and 14,842.80

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Solution

The fourth proportional to 22,815.36, 31,460.40 and 14,842.80 is: 20,466.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,815.36 : 31,460.40 = 14,842.80 : x
  2. Step 2: Convert to fraction form
    22,815.36/31,460.40 = 14,842.80/x
  3. Step 3: Cross multiply
    22,815.36x = 31,460.40 × 14,842.80
  4. Step 4: Simplify right side
    22,815.36x = 466,960,425.12
  5. Step 5: Solve for x
    x = 466,960,425.12/22,815.36
  6. Step 6: Final answer
    x = 20,466.93

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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.