Home / 28,645.60-39,545.04-18,051.52

Finding the Fourth Proportional to 28,645.60, 39,545.04 and 18,051.52

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Solution

The fourth proportional to 28,645.60, 39,545.04 and 18,051.52 is: 24,919.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645.60 : 39,545.04 = 18,051.52 : x
  2. Step 2: Convert to fraction form
    28,645.60/39,545.04 = 18,051.52/x
  3. Step 3: Cross multiply
    28,645.60x = 39,545.04 × 18,051.52
  4. Step 4: Simplify right side
    28,645.60x = 713,848,080.46
  5. Step 5: Solve for x
    x = 713,848,080.46/28,645.60
  6. Step 6: Final answer
    x = 24,919.99

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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.