Home / 42,921.48-64,364.40-16,611.06

Finding the Fourth Proportional to 42,921.48, 64,364.40 and 16,611.06

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Solution

The fourth proportional to 42,921.48, 64,364.40 and 16,611.06 is: 24,909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,921.48 : 64,364.40 = 16,611.06 : x
  2. Step 2: Convert to fraction form
    42,921.48/64,364.40 = 16,611.06/x
  3. Step 3: Cross multiply
    42,921.48x = 64,364.40 × 16,611.06
  4. Step 4: Simplify right side
    42,921.48x = 1,069,160,910.26
  5. Step 5: Solve for x
    x = 1,069,160,910.26/42,921.48
  6. Step 6: Final answer
    x = 24,909.69

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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.