Home / 28,343.17-42,513.81-15,221.17

Finding the Fourth Proportional to 28,343.17, 42,513.81 and 15,221.17

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Solution

The fourth proportional to 28,343.17, 42,513.81 and 15,221.17 is: 22,831.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343.17 : 42,513.81 = 15,221.17 : x
  2. Step 2: Convert to fraction form
    28,343.17/42,513.81 = 15,221.17/x
  3. Step 3: Cross multiply
    28,343.17x = 42,513.81 × 15,221.17
  4. Step 4: Simplify right side
    28,343.17x = 647,109,929.36
  5. Step 5: Solve for x
    x = 647,109,929.36/28,343.17
  6. Step 6: Final answer
    x = 22,831.25

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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.