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Finding the Fourth Proportional to 30,547.92, 45,797.28 and 13,899.39

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Solution

The fourth proportional to 30,547.92, 45,797.28 and 13,899.39 is: 20,837.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,547.92 : 45,797.28 = 13,899.39 : x
  2. Step 2: Convert to fraction form
    30,547.92/45,797.28 = 13,899.39/x
  3. Step 3: Cross multiply
    30,547.92x = 45,797.28 × 13,899.39
  4. Step 4: Simplify right side
    30,547.92x = 636,554,255.66
  5. Step 5: Solve for x
    x = 636,554,255.66/30,547.92
  6. Step 6: Final answer
    x = 20,837.89

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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.