Home / 28,206.22-38,923.04-15,457.10

Finding the Fourth Proportional to 28,206.22, 38,923.04 and 15,457.10

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Solution

The fourth proportional to 28,206.22, 38,923.04 and 15,457.10 is: 21,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.22 : 38,923.04 = 15,457.10 : x
  2. Step 2: Convert to fraction form
    28,206.22/38,923.04 = 15,457.10/x
  3. Step 3: Cross multiply
    28,206.22x = 38,923.04 × 15,457.10
  4. Step 4: Simplify right side
    28,206.22x = 601,637,321.58
  5. Step 5: Solve for x
    x = 601,637,321.58/28,206.22
  6. Step 6: Final answer
    x = 21,329.95

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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.