Home / 35,275.20-48,688.28-21,838.36

Finding the Fourth Proportional to 35,275.20, 48,688.28 and 21,838.36

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Solution

The fourth proportional to 35,275.20, 48,688.28 and 21,838.36 is: 30,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,275.20 : 48,688.28 = 21,838.36 : x
  2. Step 2: Convert to fraction form
    35,275.20/48,688.28 = 21,838.36/x
  3. Step 3: Cross multiply
    35,275.20x = 48,688.28 × 21,838.36
  4. Step 4: Simplify right side
    35,275.20x = 1,063,272,186.42
  5. Step 5: Solve for x
    x = 1,063,272,186.42/35,275.20
  6. Step 6: Final answer
    x = 30,142.20

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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.