Home / 29,635.61-40,897.82-18,312.87

Finding the Fourth Proportional to 29,635.61, 40,897.82 and 18,312.87

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Solution

The fourth proportional to 29,635.61, 40,897.82 and 18,312.87 is: 25,272.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,635.61 : 40,897.82 = 18,312.87 : x
  2. Step 2: Convert to fraction form
    29,635.61/40,897.82 = 18,312.87/x
  3. Step 3: Cross multiply
    29,635.61x = 40,897.82 × 18,312.87
  4. Step 4: Simplify right side
    29,635.61x = 748,956,460.94
  5. Step 5: Solve for x
    x = 748,956,460.94/29,635.61
  6. Step 6: Final answer
    x = 25,272.18

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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.