Home / 42,828.78-64,227.21-14,740.98

Finding the Fourth Proportional to 42,828.78, 64,227.21 and 14,740.98

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Solution

The fourth proportional to 42,828.78, 64,227.21 and 14,740.98 is: 22,105.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,828.78 : 64,227.21 = 14,740.98 : x
  2. Step 2: Convert to fraction form
    42,828.78/64,227.21 = 14,740.98/x
  3. Step 3: Cross multiply
    42,828.78x = 64,227.21 × 14,740.98
  4. Step 4: Simplify right side
    42,828.78x = 946,772,018.07
  5. Step 5: Solve for x
    x = 946,772,018.07/42,828.78
  6. Step 6: Final answer
    x = 22,105.98

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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.