Home / 35,814.34-53,721.51-12,440.80

Finding the Fourth Proportional to 35,814.34, 53,721.51 and 12,440.80

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Solution

The fourth proportional to 35,814.34, 53,721.51 and 12,440.80 is: 18,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,814.34 : 53,721.51 = 12,440.80 : x
  2. Step 2: Convert to fraction form
    35,814.34/53,721.51 = 12,440.80/x
  3. Step 3: Cross multiply
    35,814.34x = 53,721.51 × 12,440.80
  4. Step 4: Simplify right side
    35,814.34x = 668,338,561.61
  5. Step 5: Solve for x
    x = 668,338,561.61/35,814.34
  6. Step 6: Final answer
    x = 18,661.20

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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.