Home / 28,162.47-38,828.93-18,073.11

Finding the Fourth Proportional to 28,162.47, 38,828.93 and 18,073.11

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Solution

The fourth proportional to 28,162.47, 38,828.93 and 18,073.11 is: 24,918.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,162.47 : 38,828.93 = 18,073.11 : x
  2. Step 2: Convert to fraction form
    28,162.47/38,828.93 = 18,073.11/x
  3. Step 3: Cross multiply
    28,162.47x = 38,828.93 × 18,073.11
  4. Step 4: Simplify right side
    28,162.47x = 701,759,432.71
  5. Step 5: Solve for x
    x = 701,759,432.71/28,162.47
  6. Step 6: Final answer
    x = 24,918.25

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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.