Home / 35,776.47-53,674.26-12,402.90

Finding the Fourth Proportional to 35,776.47, 53,674.26 and 12,402.90

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Solution

The fourth proportional to 35,776.47, 53,674.26 and 12,402.90 is: 18,607.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,776.47 : 53,674.26 = 12,402.90 : x
  2. Step 2: Convert to fraction form
    35,776.47/53,674.26 = 12,402.90/x
  3. Step 3: Cross multiply
    35,776.47x = 53,674.26 × 12,402.90
  4. Step 4: Simplify right side
    35,776.47x = 665,716,479.35
  5. Step 5: Solve for x
    x = 665,716,479.35/35,776.47
  6. Step 6: Final answer
    x = 18,607.66

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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.