Home / 30,541.19-42,146.32-17,112.40

Finding the Fourth Proportional to 30,541.19, 42,146.32 and 17,112.40

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Solution

The fourth proportional to 30,541.19, 42,146.32 and 17,112.40 is: 23,614.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,541.19 : 42,146.32 = 17,112.40 : x
  2. Step 2: Convert to fraction form
    30,541.19/42,146.32 = 17,112.40/x
  3. Step 3: Cross multiply
    30,541.19x = 42,146.32 × 17,112.40
  4. Step 4: Simplify right side
    30,541.19x = 721,224,600.81
  5. Step 5: Solve for x
    x = 721,224,600.81/30,541.19
  6. Step 6: Final answer
    x = 23,614.82

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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.