Home / 30,516.50-42,113.55-17,090.59

Finding the Fourth Proportional to 30,516.50, 42,113.55 and 17,090.59

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Solution

The fourth proportional to 30,516.50, 42,113.55 and 17,090.59 is: 23,585.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.50 : 42,113.55 = 17,090.59 : x
  2. Step 2: Convert to fraction form
    30,516.50/42,113.55 = 17,090.59/x
  3. Step 3: Cross multiply
    30,516.50x = 42,113.55 × 17,090.59
  4. Step 4: Simplify right side
    30,516.50x = 719,745,416.49
  5. Step 5: Solve for x
    x = 719,745,416.49/30,516.50
  6. Step 6: Final answer
    x = 23,585.45

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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.