Home / 28,050.78-38,710.08-15,475.53

Finding the Fourth Proportional to 28,050.78, 38,710.08 and 15,475.53

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Solution

The fourth proportional to 28,050.78, 38,710.08 and 15,475.53 is: 21,356.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,050.78 : 38,710.08 = 15,475.53 : x
  2. Step 2: Convert to fraction form
    28,050.78/38,710.08 = 15,475.53/x
  3. Step 3: Cross multiply
    28,050.78x = 38,710.08 × 15,475.53
  4. Step 4: Simplify right side
    28,050.78x = 599,059,004.34
  5. Step 5: Solve for x
    x = 599,059,004.34/28,050.78
  6. Step 6: Final answer
    x = 21,356.23

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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.