Home / 20,692.60-31,038.98-5,110.23

Finding the Fourth Proportional to 20,692.60, 31,038.98 and 5,110.23

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Solution

The fourth proportional to 20,692.60, 31,038.98 and 5,110.23 is: 7,665.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,692.60 : 31,038.98 = 5,110.23 : x
  2. Step 2: Convert to fraction form
    20,692.60/31,038.98 = 5,110.23/x
  3. Step 3: Cross multiply
    20,692.60x = 31,038.98 × 5,110.23
  4. Step 4: Simplify right side
    20,692.60x = 158,616,326.77
  5. Step 5: Solve for x
    x = 158,616,326.77/20,692.60
  6. Step 6: Final answer
    x = 7,665.36

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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.