Home / 28,088.16-42,109.92-15,612.48

Finding the Fourth Proportional to 28,088.16, 42,109.92 and 15,612.48

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Solution

The fourth proportional to 28,088.16, 42,109.92 and 15,612.48 is: 23,406.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088.16 : 42,109.92 = 15,612.48 : x
  2. Step 2: Convert to fraction form
    28,088.16/42,109.92 = 15,612.48/x
  3. Step 3: Cross multiply
    28,088.16x = 42,109.92 × 15,612.48
  4. Step 4: Simplify right side
    28,088.16x = 657,440,283.80
  5. Step 5: Solve for x
    x = 657,440,283.80/28,088.16
  6. Step 6: Final answer
    x = 23,406.31

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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.