Home / 42,843.78-64,253.33-14,762.70

Finding the Fourth Proportional to 42,843.78, 64,253.33 and 14,762.70

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Solution

The fourth proportional to 42,843.78, 64,253.33 and 14,762.70 is: 22,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,843.78 : 64,253.33 = 14,762.70 : x
  2. Step 2: Convert to fraction form
    42,843.78/64,253.33 = 14,762.70/x
  3. Step 3: Cross multiply
    42,843.78x = 64,253.33 × 14,762.70
  4. Step 4: Simplify right side
    42,843.78x = 948,552,634.79
  5. Step 5: Solve for x
    x = 948,552,634.79/42,843.78
  6. Step 6: Final answer
    x = 22,139.80

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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.