Home / 25,528.65-35,218.79-18,439.53

Finding the Fourth Proportional to 25,528.65, 35,218.79 and 18,439.53

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Solution

The fourth proportional to 25,528.65, 35,218.79 and 18,439.53 is: 25,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,528.65 : 35,218.79 = 18,439.53 : x
  2. Step 2: Convert to fraction form
    25,528.65/35,218.79 = 18,439.53/x
  3. Step 3: Cross multiply
    25,528.65x = 35,218.79 × 18,439.53
  4. Step 4: Simplify right side
    25,528.65x = 649,417,842.57
  5. Step 5: Solve for x
    x = 649,417,842.57/25,528.65
  6. Step 6: Final answer
    x = 25,438.79

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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.