Home / 30,764.98-42,455.10-17,335.90

Finding the Fourth Proportional to 30,764.98, 42,455.10 and 17,335.90

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Solution

The fourth proportional to 30,764.98, 42,455.10 and 17,335.90 is: 23,923.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,764.98 : 42,455.10 = 17,335.90 : x
  2. Step 2: Convert to fraction form
    30,764.98/42,455.10 = 17,335.90/x
  3. Step 3: Cross multiply
    30,764.98x = 42,455.10 × 17,335.90
  4. Step 4: Simplify right side
    30,764.98x = 735,997,368.09
  5. Step 5: Solve for x
    x = 735,997,368.09/30,764.98
  6. Step 6: Final answer
    x = 23,923.22

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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.