Home / 48,707.28-67,215.48-28,560

Finding the Fourth Proportional to 48,707.28, 67,215.48 and 28,560

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Solution

The fourth proportional to 48,707.28, 67,215.48 and 28,560 is: 39,412.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,707.28 : 67,215.48 = 28,560 : x
  2. Step 2: Convert to fraction form
    48,707.28/67,215.48 = 28,560/x
  3. Step 3: Cross multiply
    48,707.28x = 67,215.48 × 28,560
  4. Step 4: Simplify right side
    48,707.28x = 1,919,674,108.80
  5. Step 5: Solve for x
    x = 1,919,674,108.80/48,707.28
  6. Step 6: Final answer
    x = 39,412.47

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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.