Home / 28,017.49-38,663.15-15,270.41

Finding the Fourth Proportional to 28,017.49, 38,663.15 and 15,270.41

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Solution

The fourth proportional to 28,017.49, 38,663.15 and 15,270.41 is: 21,072.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.49 : 38,663.15 = 15,270.41 : x
  2. Step 2: Convert to fraction form
    28,017.49/38,663.15 = 15,270.41/x
  3. Step 3: Cross multiply
    28,017.49x = 38,663.15 × 15,270.41
  4. Step 4: Simplify right side
    28,017.49x = 590,402,152.39
  5. Step 5: Solve for x
    x = 590,402,152.39/28,017.49
  6. Step 6: Final answer
    x = 21,072.63

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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.