Home / 25,640.04-38,437.24-13,800.20

Finding the Fourth Proportional to 25,640.04, 38,437.24 and 13,800.20

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Solution

The fourth proportional to 25,640.04, 38,437.24 and 13,800.20 is: 20,688.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,640.04 : 38,437.24 = 13,800.20 : x
  2. Step 2: Convert to fraction form
    25,640.04/38,437.24 = 13,800.20/x
  3. Step 3: Cross multiply
    25,640.04x = 38,437.24 × 13,800.20
  4. Step 4: Simplify right side
    25,640.04x = 530,441,599.45
  5. Step 5: Solve for x
    x = 530,441,599.45/25,640.04
  6. Step 6: Final answer
    x = 20,688.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.