Home / 42,858.85-64,292.50-14,775.21

Finding the Fourth Proportional to 42,858.85, 64,292.50 and 14,775.21

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Solution

The fourth proportional to 42,858.85, 64,292.50 and 14,775.21 is: 22,164.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,858.85 : 64,292.50 = 14,775.21 : x
  2. Step 2: Convert to fraction form
    42,858.85/64,292.50 = 14,775.21/x
  3. Step 3: Cross multiply
    42,858.85x = 64,292.50 × 14,775.21
  4. Step 4: Simplify right side
    42,858.85x = 949,935,188.93
  5. Step 5: Solve for x
    x = 949,935,188.93/42,858.85
  6. Step 6: Final answer
    x = 22,164.27

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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.