Home / 28,047.47-38,702.81-15,471.41

Finding the Fourth Proportional to 28,047.47, 38,702.81 and 15,471.41

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Solution

The fourth proportional to 28,047.47, 38,702.81 and 15,471.41 is: 21,349.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.47 : 38,702.81 = 15,471.41 : x
  2. Step 2: Convert to fraction form
    28,047.47/38,702.81 = 15,471.41/x
  3. Step 3: Cross multiply
    28,047.47x = 38,702.81 × 15,471.41
  4. Step 4: Simplify right side
    28,047.47x = 598,786,886.83
  5. Step 5: Solve for x
    x = 598,786,886.83/28,047.47
  6. Step 6: Final answer
    x = 21,349.06

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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.