Home / 28,304.70-39,064.86-20,373.18

Finding the Fourth Proportional to 28,304.70, 39,064.86 and 20,373.18

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Solution

The fourth proportional to 28,304.70, 39,064.86 and 20,373.18 is: 28,118.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,304.70 : 39,064.86 = 20,373.18 : x
  2. Step 2: Convert to fraction form
    28,304.70/39,064.86 = 20,373.18/x
  3. Step 3: Cross multiply
    28,304.70x = 39,064.86 × 20,373.18
  4. Step 4: Simplify right side
    28,304.70x = 795,875,424.45
  5. Step 5: Solve for x
    x = 795,875,424.45/28,304.70
  6. Step 6: Final answer
    x = 28,118.14

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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.