Home / 30,966.60-42,730.02-25,640.04

Finding the Fourth Proportional to 30,966.60, 42,730.02 and 25,640.04

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Solution

The fourth proportional to 30,966.60, 42,730.02 and 25,640.04 is: 35,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,966.60 : 42,730.02 = 25,640.04 : x
  2. Step 2: Convert to fraction form
    30,966.60/42,730.02 = 25,640.04/x
  3. Step 3: Cross multiply
    30,966.60x = 42,730.02 × 25,640.04
  4. Step 4: Simplify right side
    30,966.60x = 1,095,599,422.00
  5. Step 5: Solve for x
    x = 1,095,599,422.00/30,966.60
  6. Step 6: Final answer
    x = 35,380.04

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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.