Home / 30,281.36-45,427.19-10,288.71

Finding the Fourth Proportional to 30,281.36, 45,427.19 and 10,288.71

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Solution

The fourth proportional to 30,281.36, 45,427.19 and 10,288.71 is: 15,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,281.36 : 45,427.19 = 10,288.71 : x
  2. Step 2: Convert to fraction form
    30,281.36/45,427.19 = 10,288.71/x
  3. Step 3: Cross multiply
    30,281.36x = 45,427.19 × 10,288.71
  4. Step 4: Simplify right side
    30,281.36x = 467,387,132.58
  5. Step 5: Solve for x
    x = 467,387,132.58/30,281.36
  6. Step 6: Final answer
    x = 15,434.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.