Home / 38,490.16-57,738.48-13,528.08

Finding the Fourth Proportional to 38,490.16, 57,738.48 and 13,528.08

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Solution

The fourth proportional to 38,490.16, 57,738.48 and 13,528.08 is: 20,293.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,490.16 : 57,738.48 = 13,528.08 : x
  2. Step 2: Convert to fraction form
    38,490.16/57,738.48 = 13,528.08/x
  3. Step 3: Cross multiply
    38,490.16x = 57,738.48 × 13,528.08
  4. Step 4: Simplify right side
    38,490.16x = 781,090,776.52
  5. Step 5: Solve for x
    x = 781,090,776.52/38,490.16
  6. Step 6: Final answer
    x = 20,293.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.