Home / 28,457.76-42,712.86-14,427.75

Finding the Fourth Proportional to 28,457.76, 42,712.86 and 14,427.75

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Solution

The fourth proportional to 28,457.76, 42,712.86 and 14,427.75 is: 21,654.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,457.76 : 42,712.86 = 14,427.75 : x
  2. Step 2: Convert to fraction form
    28,457.76/42,712.86 = 14,427.75/x
  3. Step 3: Cross multiply
    28,457.76x = 42,712.86 × 14,427.75
  4. Step 4: Simplify right side
    28,457.76x = 616,250,465.87
  5. Step 5: Solve for x
    x = 616,250,465.87/28,457.76
  6. Step 6: Final answer
    x = 21,654.92

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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.