Home / 30,831.42-42,547.47-16,684.26

Finding the Fourth Proportional to 30,831.42, 42,547.47 and 16,684.26

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Solution

The fourth proportional to 30,831.42, 42,547.47 and 16,684.26 is: 23,024.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.42 : 42,547.47 = 16,684.26 : x
  2. Step 2: Convert to fraction form
    30,831.42/42,547.47 = 16,684.26/x
  3. Step 3: Cross multiply
    30,831.42x = 42,547.47 × 16,684.26
  4. Step 4: Simplify right side
    30,831.42x = 709,873,051.82
  5. Step 5: Solve for x
    x = 709,873,051.82/30,831.42
  6. Step 6: Final answer
    x = 23,024.34

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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.