Home / 35,859.84-53,791.20-12,488.64

Finding the Fourth Proportional to 35,859.84, 53,791.20 and 12,488.64

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Solution

The fourth proportional to 35,859.84, 53,791.20 and 12,488.64 is: 18,733.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,859.84 : 53,791.20 = 12,488.64 : x
  2. Step 2: Convert to fraction form
    35,859.84/53,791.20 = 12,488.64/x
  3. Step 3: Cross multiply
    35,859.84x = 53,791.20 × 12,488.64
  4. Step 4: Simplify right side
    35,859.84x = 671,778,931.97
  5. Step 5: Solve for x
    x = 671,778,931.97/35,859.84
  6. Step 6: Final answer
    x = 18,733.46

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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.