Home / 31,108.29-46,636.30-12,402.15

Finding the Fourth Proportional to 31,108.29, 46,636.30 and 12,402.15

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Solution

The fourth proportional to 31,108.29, 46,636.30 and 12,402.15 is: 18,592.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,108.29 : 46,636.30 = 12,402.15 : x
  2. Step 2: Convert to fraction form
    31,108.29/46,636.30 = 12,402.15/x
  3. Step 3: Cross multiply
    31,108.29x = 46,636.30 × 12,402.15
  4. Step 4: Simplify right side
    31,108.29x = 578,390,388.05
  5. Step 5: Solve for x
    x = 578,390,388.05/31,108.29
  6. Step 6: Final answer
    x = 18,592.81

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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.