Home / 30,444.48-42,007.68-17,864.64

Finding the Fourth Proportional to 30,444.48, 42,007.68 and 17,864.64

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Solution

The fourth proportional to 30,444.48, 42,007.68 and 17,864.64 is: 24,649.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,444.48 : 42,007.68 = 17,864.64 : x
  2. Step 2: Convert to fraction form
    30,444.48/42,007.68 = 17,864.64/x
  3. Step 3: Cross multiply
    30,444.48x = 42,007.68 × 17,864.64
  4. Step 4: Simplify right side
    30,444.48x = 750,452,080.44
  5. Step 5: Solve for x
    x = 750,452,080.44/30,444.48
  6. Step 6: Final answer
    x = 24,649.86

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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.