Home / 30,831.04-46,160.64-19,710.28

Finding the Fourth Proportional to 30,831.04, 46,160.64 and 19,710.28

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Solution

The fourth proportional to 30,831.04, 46,160.64 and 19,710.28 is: 29,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.04 : 46,160.64 = 19,710.28 : x
  2. Step 2: Convert to fraction form
    30,831.04/46,160.64 = 19,710.28/x
  3. Step 3: Cross multiply
    30,831.04x = 46,160.64 × 19,710.28
  4. Step 4: Simplify right side
    30,831.04x = 909,839,139.38
  5. Step 5: Solve for x
    x = 909,839,139.38/30,831.04
  6. Step 6: Final answer
    x = 29,510.49

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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.