Home / 30,831.62-42,547.67-16,684.46

Finding the Fourth Proportional to 30,831.62, 42,547.67 and 16,684.46

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Solution

The fourth proportional to 30,831.62, 42,547.67 and 16,684.46 is: 23,024.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.62 : 42,547.67 = 16,684.46 : x
  2. Step 2: Convert to fraction form
    30,831.62/42,547.67 = 16,684.46/x
  3. Step 3: Cross multiply
    30,831.62x = 42,547.67 × 16,684.46
  4. Step 4: Simplify right side
    30,831.62x = 709,885,025.43
  5. Step 5: Solve for x
    x = 709,885,025.43/30,831.62
  6. Step 6: Final answer
    x = 23,024.58

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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.