Home / 28,035.40-38,688.96-15,460.06

Finding the Fourth Proportional to 28,035.40, 38,688.96 and 15,460.06

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Solution

The fourth proportional to 28,035.40, 38,688.96 and 15,460.06 is: 21,334.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035.40 : 38,688.96 = 15,460.06 : x
  2. Step 2: Convert to fraction form
    28,035.40/38,688.96 = 15,460.06/x
  3. Step 3: Cross multiply
    28,035.40x = 38,688.96 × 15,460.06
  4. Step 4: Simplify right side
    28,035.40x = 598,133,642.94
  5. Step 5: Solve for x
    x = 598,133,642.94/28,035.40
  6. Step 6: Final answer
    x = 21,334.94

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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.