Home / 22,765.02-31,411.72-12,692.68

Finding the Fourth Proportional to 22,765.02, 31,411.72 and 12,692.68

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Solution

The fourth proportional to 22,765.02, 31,411.72 and 12,692.68 is: 17,513.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,765.02 : 31,411.72 = 12,692.68 : x
  2. Step 2: Convert to fraction form
    22,765.02/31,411.72 = 12,692.68/x
  3. Step 3: Cross multiply
    22,765.02x = 31,411.72 × 12,692.68
  4. Step 4: Simplify right side
    22,765.02x = 398,698,910.21
  5. Step 5: Solve for x
    x = 398,698,910.21/22,765.02
  6. Step 6: Final answer
    x = 17,513.66

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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.