Home / 30,499.44-42,090-17,070.72

Finding the Fourth Proportional to 30,499.44, 42,090 and 17,070.72

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Solution

The fourth proportional to 30,499.44, 42,090 and 17,070.72 is: 23,558.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,499.44 : 42,090 = 17,070.72 : x
  2. Step 2: Convert to fraction form
    30,499.44/42,090 = 17,070.72/x
  3. Step 3: Cross multiply
    30,499.44x = 42,090 × 17,070.72
  4. Step 4: Simplify right side
    30,499.44x = 718,506,604.80
  5. Step 5: Solve for x
    x = 718,506,604.80/30,499.44
  6. Step 6: Final answer
    x = 23,558.03

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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.