Home / 30,516.57-42,111.56-17,085.56

Finding the Fourth Proportional to 30,516.57, 42,111.56 and 17,085.56

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Solution

The fourth proportional to 30,516.57, 42,111.56 and 17,085.56 is: 23,577.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.57 : 42,111.56 = 17,085.56 : x
  2. Step 2: Convert to fraction form
    30,516.57/42,111.56 = 17,085.56/x
  3. Step 3: Cross multiply
    30,516.57x = 42,111.56 × 17,085.56
  4. Step 4: Simplify right side
    30,516.57x = 719,499,417.23
  5. Step 5: Solve for x
    x = 719,499,417.23/30,516.57
  6. Step 6: Final answer
    x = 23,577.34

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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.