Home / 30,740.80-42,441.92-25,089.05

Finding the Fourth Proportional to 30,740.80, 42,441.92 and 25,089.05

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Solution

The fourth proportional to 30,740.80, 42,441.92 and 25,089.05 is: 34,638.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,740.80 : 42,441.92 = 25,089.05 : x
  2. Step 2: Convert to fraction form
    30,740.80/42,441.92 = 25,089.05/x
  3. Step 3: Cross multiply
    30,740.80x = 42,441.92 × 25,089.05
  4. Step 4: Simplify right side
    30,740.80x = 1,064,827,115.32
  5. Step 5: Solve for x
    x = 1,064,827,115.32/30,740.80
  6. Step 6: Final answer
    x = 34,638.89

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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.