Home / 28,033.14-38,685.51-15,457.89

Finding the Fourth Proportional to 28,033.14, 38,685.51 and 15,457.89

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Solution

The fourth proportional to 28,033.14, 38,685.51 and 15,457.89 is: 21,331.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033.14 : 38,685.51 = 15,457.89 : x
  2. Step 2: Convert to fraction form
    28,033.14/38,685.51 = 15,457.89/x
  3. Step 3: Cross multiply
    28,033.14x = 38,685.51 × 15,457.89
  4. Step 4: Simplify right side
    28,033.14x = 597,996,358.17
  5. Step 5: Solve for x
    x = 597,996,358.17/28,033.14
  6. Step 6: Final answer
    x = 21,331.77

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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.