Home / 36,106.86-54,147.02-12,407.68

Finding the Fourth Proportional to 36,106.86, 54,147.02 and 12,407.68

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Solution

The fourth proportional to 36,106.86, 54,147.02 and 12,407.68 is: 18,606.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,106.86 : 54,147.02 = 12,407.68 : x
  2. Step 2: Convert to fraction form
    36,106.86/54,147.02 = 12,407.68/x
  3. Step 3: Cross multiply
    36,106.86x = 54,147.02 × 12,407.68
  4. Step 4: Simplify right side
    36,106.86x = 671,838,897.11
  5. Step 5: Solve for x
    x = 671,838,897.11/36,106.86
  6. Step 6: Final answer
    x = 18,606.96

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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.