Home / 28,967.06-39,977.90-17,643.20

Finding the Fourth Proportional to 28,967.06, 39,977.90 and 17,643.20

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Solution

The fourth proportional to 28,967.06, 39,977.90 and 17,643.20 is: 24,349.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,967.06 : 39,977.90 = 17,643.20 : x
  2. Step 2: Convert to fraction form
    28,967.06/39,977.90 = 17,643.20/x
  3. Step 3: Cross multiply
    28,967.06x = 39,977.90 × 17,643.20
  4. Step 4: Simplify right side
    28,967.06x = 705,337,797.17
  5. Step 5: Solve for x
    x = 705,337,797.17/28,967.06
  6. Step 6: Final answer
    x = 24,349.66

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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.