Home / 28,372.30-42,500.93-13,153.49

Finding the Fourth Proportional to 28,372.30, 42,500.93 and 13,153.49

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Solution

The fourth proportional to 28,372.30, 42,500.93 and 13,153.49 is: 19,703.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,372.30 : 42,500.93 = 13,153.49 : x
  2. Step 2: Convert to fraction form
    28,372.30/42,500.93 = 13,153.49/x
  3. Step 3: Cross multiply
    28,372.30x = 42,500.93 × 13,153.49
  4. Step 4: Simplify right side
    28,372.30x = 559,035,475.85
  5. Step 5: Solve for x
    x = 559,035,475.85/28,372.30
  6. Step 6: Final answer
    x = 19,703.57

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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.