Home / 38,355.06-52,928.55-21,359.91

Finding the Fourth Proportional to 38,355.06, 52,928.55 and 21,359.91

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Solution

The fourth proportional to 38,355.06, 52,928.55 and 21,359.91 is: 29,475.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,355.06 : 52,928.55 = 21,359.91 : x
  2. Step 2: Convert to fraction form
    38,355.06/52,928.55 = 21,359.91/x
  3. Step 3: Cross multiply
    38,355.06x = 52,928.55 × 21,359.91
  4. Step 4: Simplify right side
    38,355.06x = 1,130,549,064.43
  5. Step 5: Solve for x
    x = 1,130,549,064.43/38,355.06
  6. Step 6: Final answer
    x = 29,475.88

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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.