Home / 30,824.95-42,538.43-16,677.79

Finding the Fourth Proportional to 30,824.95, 42,538.43 and 16,677.79

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Solution

The fourth proportional to 30,824.95, 42,538.43 and 16,677.79 is: 23,015.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,824.95 : 42,538.43 = 16,677.79 : x
  2. Step 2: Convert to fraction form
    30,824.95/42,538.43 = 16,677.79/x
  3. Step 3: Cross multiply
    30,824.95x = 42,538.43 × 16,677.79
  4. Step 4: Simplify right side
    30,824.95x = 709,447,108.82
  5. Step 5: Solve for x
    x = 709,447,108.82/30,824.95
  6. Step 6: Final answer
    x = 23,015.35

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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.