Home / 19,985.04-29,825.56-17,770.72

Finding the Fourth Proportional to 19,985.04, 29,825.56 and 17,770.72

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Solution

The fourth proportional to 19,985.04, 29,825.56 and 17,770.72 is: 26,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.04 : 29,825.56 = 17,770.72 : x
  2. Step 2: Convert to fraction form
    19,985.04/29,825.56 = 17,770.72/x
  3. Step 3: Cross multiply
    19,985.04x = 29,825.56 × 17,770.72
  4. Step 4: Simplify right side
    19,985.04x = 530,021,675.60
  5. Step 5: Solve for x
    x = 530,021,675.60/19,985.04
  6. Step 6: Final answer
    x = 26,520.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.