Home / 30,820.05-42,531.53-16,672.77

Finding the Fourth Proportional to 30,820.05, 42,531.53 and 16,672.77

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Solution

The fourth proportional to 30,820.05, 42,531.53 and 16,672.77 is: 23,008.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,820.05 : 42,531.53 = 16,672.77 : x
  2. Step 2: Convert to fraction form
    30,820.05/42,531.53 = 16,672.77/x
  3. Step 3: Cross multiply
    30,820.05x = 42,531.53 × 16,672.77
  4. Step 4: Simplify right side
    30,820.05x = 709,118,334.07
  5. Step 5: Solve for x
    x = 709,118,334.07/30,820.05
  6. Step 6: Final answer
    x = 23,008.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.