Home / 28,035.16-38,688.81-15,460.36

Finding the Fourth Proportional to 28,035.16, 38,688.81 and 15,460.36

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Solution

The fourth proportional to 28,035.16, 38,688.81 and 15,460.36 is: 21,335.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035.16 : 38,688.81 = 15,460.36 : x
  2. Step 2: Convert to fraction form
    28,035.16/38,688.81 = 15,460.36/x
  3. Step 3: Cross multiply
    28,035.16x = 38,688.81 × 15,460.36
  4. Step 4: Simplify right side
    28,035.16x = 598,142,930.57
  5. Step 5: Solve for x
    x = 598,142,930.57/28,035.16
  6. Step 6: Final answer
    x = 21,335.46

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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.