Home / 28,166.76-42,258.12-14,109.81

Finding the Fourth Proportional to 28,166.76, 42,258.12 and 14,109.81

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Solution

The fourth proportional to 28,166.76, 42,258.12 and 14,109.81 is: 21,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.76 : 42,258.12 = 14,109.81 : x
  2. Step 2: Convert to fraction form
    28,166.76/42,258.12 = 14,109.81/x
  3. Step 3: Cross multiply
    28,166.76x = 42,258.12 × 14,109.81
  4. Step 4: Simplify right side
    28,166.76x = 596,254,044.16
  5. Step 5: Solve for x
    x = 596,254,044.16/28,166.76
  6. Step 6: Final answer
    x = 21,168.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.