Home / 30,849.04-42,572.10-18,111.79

Finding the Fourth Proportional to 30,849.04, 42,572.10 and 18,111.79

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Solution

The fourth proportional to 30,849.04, 42,572.10 and 18,111.79 is: 24,994.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,849.04 : 42,572.10 = 18,111.79 : x
  2. Step 2: Convert to fraction form
    30,849.04/42,572.10 = 18,111.79/x
  3. Step 3: Cross multiply
    30,849.04x = 42,572.10 × 18,111.79
  4. Step 4: Simplify right side
    30,849.04x = 771,056,935.06
  5. Step 5: Solve for x
    x = 771,056,935.06/30,849.04
  6. Step 6: Final answer
    x = 24,994.52

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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.