Home / 30,586.81-42,185.45-25,272.40

Finding the Fourth Proportional to 30,586.81, 42,185.45 and 25,272.40

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Solution

The fourth proportional to 30,586.81, 42,185.45 and 25,272.40 is: 34,855.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,586.81 : 42,185.45 = 25,272.40 : x
  2. Step 2: Convert to fraction form
    30,586.81/42,185.45 = 25,272.40/x
  3. Step 3: Cross multiply
    30,586.81x = 42,185.45 × 25,272.40
  4. Step 4: Simplify right side
    30,586.81x = 1,066,127,566.58
  5. Step 5: Solve for x
    x = 1,066,127,566.58/30,586.81
  6. Step 6: Final answer
    x = 34,855.79

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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.