Home / 30,752.36-42,432.60-17,320.74

Finding the Fourth Proportional to 30,752.36, 42,432.60 and 17,320.74

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Solution

The fourth proportional to 30,752.36, 42,432.60 and 17,320.74 is: 23,899.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,752.36 : 42,432.60 = 17,320.74 : x
  2. Step 2: Convert to fraction form
    30,752.36/42,432.60 = 17,320.74/x
  3. Step 3: Cross multiply
    30,752.36x = 42,432.60 × 17,320.74
  4. Step 4: Simplify right side
    30,752.36x = 734,964,032.12
  5. Step 5: Solve for x
    x = 734,964,032.12/30,752.36
  6. Step 6: Final answer
    x = 23,899.44

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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.