Home / 30,700.64-42,363.43-17,271.61

Finding the Fourth Proportional to 30,700.64, 42,363.43 and 17,271.61

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Solution

The fourth proportional to 30,700.64, 42,363.43 and 17,271.61 is: 23,832.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,700.64 : 42,363.43 = 17,271.61 : x
  2. Step 2: Convert to fraction form
    30,700.64/42,363.43 = 17,271.61/x
  3. Step 3: Cross multiply
    30,700.64x = 42,363.43 × 17,271.61
  4. Step 4: Simplify right side
    30,700.64x = 731,684,641.22
  5. Step 5: Solve for x
    x = 731,684,641.22/30,700.64
  6. Step 6: Final answer
    x = 23,832.88

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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.