Home / 28,529.80-39,381.02-19,606.84

Finding the Fourth Proportional to 28,529.80, 39,381.02 and 19,606.84

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Solution

The fourth proportional to 28,529.80, 39,381.02 and 19,606.84 is: 27,064.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529.80 : 39,381.02 = 19,606.84 : x
  2. Step 2: Convert to fraction form
    28,529.80/39,381.02 = 19,606.84/x
  3. Step 3: Cross multiply
    28,529.80x = 39,381.02 × 19,606.84
  4. Step 4: Simplify right side
    28,529.80x = 772,137,358.18
  5. Step 5: Solve for x
    x = 772,137,358.18/28,529.80
  6. Step 6: Final answer
    x = 27,064.24

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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.