Home / 28,284.29-42,444.30-15,812.51

Finding the Fourth Proportional to 28,284.29, 42,444.30 and 15,812.51

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Solution

The fourth proportional to 28,284.29, 42,444.30 and 15,812.51 is: 23,728.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,284.29 : 42,444.30 = 15,812.51 : x
  2. Step 2: Convert to fraction form
    28,284.29/42,444.30 = 15,812.51/x
  3. Step 3: Cross multiply
    28,284.29x = 42,444.30 × 15,812.51
  4. Step 4: Simplify right side
    28,284.29x = 671,150,705.97
  5. Step 5: Solve for x
    x = 671,150,705.97/28,284.29
  6. Step 6: Final answer
    x = 23,728.75

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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.