Home / 29,030.72-40,070.92-18,960.70

Finding the Fourth Proportional to 29,030.72, 40,070.92 and 18,960.70

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Solution

The fourth proportional to 29,030.72, 40,070.92 and 18,960.70 is: 26,171.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,030.72 : 40,070.92 = 18,960.70 : x
  2. Step 2: Convert to fraction form
    29,030.72/40,070.92 = 18,960.70/x
  3. Step 3: Cross multiply
    29,030.72x = 40,070.92 × 18,960.70
  4. Step 4: Simplify right side
    29,030.72x = 759,772,692.84
  5. Step 5: Solve for x
    x = 759,772,692.84/29,030.72
  6. Step 6: Final answer
    x = 26,171.33

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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.