Home / 20,973.40-31,460.26-7,655.94

Finding the Fourth Proportional to 20,973.40, 31,460.26 and 7,655.94

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Solution

The fourth proportional to 20,973.40, 31,460.26 and 7,655.94 is: 11,483.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.40 : 31,460.26 = 7,655.94 : x
  2. Step 2: Convert to fraction form
    20,973.40/31,460.26 = 7,655.94/x
  3. Step 3: Cross multiply
    20,973.40x = 31,460.26 × 7,655.94
  4. Step 4: Simplify right side
    20,973.40x = 240,857,862.94
  5. Step 5: Solve for x
    x = 240,857,862.94/20,973.40
  6. Step 6: Final answer
    x = 11,483.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.