Home / 38,281.32-52,821.80-21,285.08

Finding the Fourth Proportional to 38,281.32, 52,821.80 and 21,285.08

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Solution

The fourth proportional to 38,281.32, 52,821.80 and 21,285.08 is: 29,369.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,281.32 : 52,821.80 = 21,285.08 : x
  2. Step 2: Convert to fraction form
    38,281.32/52,821.80 = 21,285.08/x
  3. Step 3: Cross multiply
    38,281.32x = 52,821.80 × 21,285.08
  4. Step 4: Simplify right side
    38,281.32x = 1,124,316,238.74
  5. Step 5: Solve for x
    x = 1,124,316,238.74/38,281.32
  6. Step 6: Final answer
    x = 29,369.84

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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.