Home / 28,306.56-39,066.74-18,264.21

Finding the Fourth Proportional to 28,306.56, 39,066.74 and 18,264.21

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Solution

The fourth proportional to 28,306.56, 39,066.74 and 18,264.21 is: 25,206.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.56 : 39,066.74 = 18,264.21 : x
  2. Step 2: Convert to fraction form
    28,306.56/39,066.74 = 18,264.21/x
  3. Step 3: Cross multiply
    28,306.56x = 39,066.74 × 18,264.21
  4. Step 4: Simplify right side
    28,306.56x = 713,523,226.79
  5. Step 5: Solve for x
    x = 713,523,226.79/28,306.56
  6. Step 6: Final answer
    x = 25,206.99

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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.