Home / 30,842.04-42,580.32-20,250.24

Finding the Fourth Proportional to 30,842.04, 42,580.32 and 20,250.24

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Solution

The fourth proportional to 30,842.04, 42,580.32 and 20,250.24 is: 27,957.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,842.04 : 42,580.32 = 20,250.24 : x
  2. Step 2: Convert to fraction form
    30,842.04/42,580.32 = 20,250.24/x
  3. Step 3: Cross multiply
    30,842.04x = 42,580.32 × 20,250.24
  4. Step 4: Simplify right side
    30,842.04x = 862,261,699.28
  5. Step 5: Solve for x
    x = 862,261,699.28/30,842.04
  6. Step 6: Final answer
    x = 27,957.35

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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.