Home / 28,153.68-42,230.48-13,354.52

Finding the Fourth Proportional to 28,153.68, 42,230.48 and 13,354.52

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Solution

The fourth proportional to 28,153.68, 42,230.48 and 13,354.52 is: 20,031.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,153.68 : 42,230.48 = 13,354.52 : x
  2. Step 2: Convert to fraction form
    28,153.68/42,230.48 = 13,354.52/x
  3. Step 3: Cross multiply
    28,153.68x = 42,230.48 × 13,354.52
  4. Step 4: Simplify right side
    28,153.68x = 563,967,789.77
  5. Step 5: Solve for x
    x = 563,967,789.77/28,153.68
  6. Step 6: Final answer
    x = 20,031.76

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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.