Home / 28,224.48-38,947.70-15,475.62

Finding the Fourth Proportional to 28,224.48, 38,947.70 and 15,475.62

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Solution

The fourth proportional to 28,224.48, 38,947.70 and 15,475.62 is: 21,355.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,224.48 : 38,947.70 = 15,475.62 : x
  2. Step 2: Convert to fraction form
    28,224.48/38,947.70 = 15,475.62/x
  3. Step 3: Cross multiply
    28,224.48x = 38,947.70 × 15,475.62
  4. Step 4: Simplify right side
    28,224.48x = 602,739,805.07
  5. Step 5: Solve for x
    x = 602,739,805.07/28,224.48
  6. Step 6: Final answer
    x = 21,355.21

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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.