Home / 28,500.31-42,751.20-13,503.91

Finding the Fourth Proportional to 28,500.31, 42,751.20 and 13,503.91

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Solution

The fourth proportional to 28,500.31, 42,751.20 and 13,503.91 is: 20,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.31 : 42,751.20 = 13,503.91 : x
  2. Step 2: Convert to fraction form
    28,500.31/42,751.20 = 13,503.91/x
  3. Step 3: Cross multiply
    28,500.31x = 42,751.20 × 13,503.91
  4. Step 4: Simplify right side
    28,500.31x = 577,308,357.19
  5. Step 5: Solve for x
    x = 577,308,357.19/28,500.31
  6. Step 6: Final answer
    x = 20,256.21

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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.