Home / 28,739.84-39,656.40-17,407.40

Finding the Fourth Proportional to 28,739.84, 39,656.40 and 17,407.40

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Solution

The fourth proportional to 28,739.84, 39,656.40 and 17,407.40 is: 24,019.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,739.84 : 39,656.40 = 17,407.40 : x
  2. Step 2: Convert to fraction form
    28,739.84/39,656.40 = 17,407.40/x
  3. Step 3: Cross multiply
    28,739.84x = 39,656.40 × 17,407.40
  4. Step 4: Simplify right side
    28,739.84x = 690,314,817.36
  5. Step 5: Solve for x
    x = 690,314,817.36/28,739.84
  6. Step 6: Final answer
    x = 24,019.44

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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.