Home / 30,980.46-46,639.28-28,224.84

Finding the Fourth Proportional to 30,980.46, 46,639.28 and 28,224.84

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Solution

The fourth proportional to 30,980.46, 46,639.28 and 28,224.84 is: 42,490.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,980.46 : 46,639.28 = 28,224.84 : x
  2. Step 2: Convert to fraction form
    30,980.46/46,639.28 = 28,224.84/x
  3. Step 3: Cross multiply
    30,980.46x = 46,639.28 × 28,224.84
  4. Step 4: Simplify right side
    30,980.46x = 1,316,386,215.72
  5. Step 5: Solve for x
    x = 1,316,386,215.72/30,980.46
  6. Step 6: Final answer
    x = 42,490.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.