Home / 42,491.52-58,666.32-30,467.76

Finding the Fourth Proportional to 42,491.52, 58,666.32 and 30,467.76

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Solution

The fourth proportional to 42,491.52, 58,666.32 and 30,467.76 is: 42,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,491.52 : 58,666.32 = 30,467.76 : x
  2. Step 2: Convert to fraction form
    42,491.52/58,666.32 = 30,467.76/x
  3. Step 3: Cross multiply
    42,491.52x = 58,666.32 × 30,467.76
  4. Step 4: Simplify right side
    42,491.52x = 1,787,431,357.84
  5. Step 5: Solve for x
    x = 1,787,431,357.84/42,491.52
  6. Step 6: Final answer
    x = 42,065.60

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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.