Home / 28,529.73-39,384.77-18,985.53

Finding the Fourth Proportional to 28,529.73, 39,384.77 and 18,985.53

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Solution

The fourth proportional to 28,529.73, 39,384.77 and 18,985.53 is: 26,209.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529.73 : 39,384.77 = 18,985.53 : x
  2. Step 2: Convert to fraction form
    28,529.73/39,384.77 = 18,985.53/x
  3. Step 3: Cross multiply
    28,529.73x = 39,384.77 × 18,985.53
  4. Step 4: Simplify right side
    28,529.73x = 747,740,732.38
  5. Step 5: Solve for x
    x = 747,740,732.38/28,529.73
  6. Step 6: Final answer
    x = 26,209.18

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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.