Home / 28,358.99-42,538.50-11,700.72

Finding the Fourth Proportional to 28,358.99, 42,538.50 and 11,700.72

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Solution

The fourth proportional to 28,358.99, 42,538.50 and 11,700.72 is: 17,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,358.99 : 42,538.50 = 11,700.72 : x
  2. Step 2: Convert to fraction form
    28,358.99/42,538.50 = 11,700.72/x
  3. Step 3: Cross multiply
    28,358.99x = 42,538.50 × 11,700.72
  4. Step 4: Simplify right side
    28,358.99x = 497,731,007.44
  5. Step 5: Solve for x
    x = 497,731,007.44/28,358.99
  6. Step 6: Final answer
    x = 17,551.08

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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.