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Finding the Fourth Proportional to 29,570.32, 40,804.59 and 16,820.11

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Solution

The fourth proportional to 29,570.32, 40,804.59 and 16,820.11 is: 23,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,570.32 : 40,804.59 = 16,820.11 : x
  2. Step 2: Convert to fraction form
    29,570.32/40,804.59 = 16,820.11/x
  3. Step 3: Cross multiply
    29,570.32x = 40,804.59 × 16,820.11
  4. Step 4: Simplify right side
    29,570.32x = 686,337,692.30
  5. Step 5: Solve for x
    x = 686,337,692.30/29,570.32
  6. Step 6: Final answer
    x = 23,210.36

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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.