Home / 30,491.28-42,073.16-17,746.56

Finding the Fourth Proportional to 30,491.28, 42,073.16 and 17,746.56

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Solution

The fourth proportional to 30,491.28, 42,073.16 and 17,746.56 is: 24,487.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,491.28 : 42,073.16 = 17,746.56 : x
  2. Step 2: Convert to fraction form
    30,491.28/42,073.16 = 17,746.56/x
  3. Step 3: Cross multiply
    30,491.28x = 42,073.16 × 17,746.56
  4. Step 4: Simplify right side
    30,491.28x = 746,653,769.60
  5. Step 5: Solve for x
    x = 746,653,769.60/30,491.28
  6. Step 6: Final answer
    x = 24,487.45

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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.