Home / 19,678.02-29,489.40-10,770.45

Finding the Fourth Proportional to 19,678.02, 29,489.40 and 10,770.45

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Solution

The fourth proportional to 19,678.02, 29,489.40 and 10,770.45 is: 16,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.02 : 29,489.40 = 10,770.45 : x
  2. Step 2: Convert to fraction form
    19,678.02/29,489.40 = 10,770.45/x
  3. Step 3: Cross multiply
    19,678.02x = 29,489.40 × 10,770.45
  4. Step 4: Simplify right side
    19,678.02x = 317,614,108.23
  5. Step 5: Solve for x
    x = 317,614,108.23/19,678.02
  6. Step 6: Final answer
    x = 16,140.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.