Home / 28,301.58-39,065.22-19,345.86

Finding the Fourth Proportional to 28,301.58, 39,065.22 and 19,345.86

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Solution

The fourth proportional to 28,301.58, 39,065.22 and 19,345.86 is: 26,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.58 : 39,065.22 = 19,345.86 : x
  2. Step 2: Convert to fraction form
    28,301.58/39,065.22 = 19,345.86/x
  3. Step 3: Cross multiply
    28,301.58x = 39,065.22 × 19,345.86
  4. Step 4: Simplify right side
    28,301.58x = 755,750,276.99
  5. Step 5: Solve for x
    x = 755,750,276.99/28,301.58
  6. Step 6: Final answer
    x = 26,703.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.