Home / 30,867.63-42,597.33-16,720.47

Finding the Fourth Proportional to 30,867.63, 42,597.33 and 16,720.47

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Solution

The fourth proportional to 30,867.63, 42,597.33 and 16,720.47 is: 23,074.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,867.63 : 42,597.33 = 16,720.47 : x
  2. Step 2: Convert to fraction form
    30,867.63/42,597.33 = 16,720.47/x
  3. Step 3: Cross multiply
    30,867.63x = 42,597.33 × 16,720.47
  4. Step 4: Simplify right side
    30,867.63x = 712,247,294.74
  5. Step 5: Solve for x
    x = 712,247,294.74/30,867.63
  6. Step 6: Final answer
    x = 23,074.25

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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.