Home / 28,527.71-39,354.98-18,459.40

Finding the Fourth Proportional to 28,527.71, 39,354.98 and 18,459.40

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Solution

The fourth proportional to 28,527.71, 39,354.98 and 18,459.40 is: 25,465.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,527.71 : 39,354.98 = 18,459.40 : x
  2. Step 2: Convert to fraction form
    28,527.71/39,354.98 = 18,459.40/x
  3. Step 3: Cross multiply
    28,527.71x = 39,354.98 × 18,459.40
  4. Step 4: Simplify right side
    28,527.71x = 726,469,337.56
  5. Step 5: Solve for x
    x = 726,469,337.56/28,527.71
  6. Step 6: Final answer
    x = 25,465.39

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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.