Home / 38,315.80-52,876.05-21,320.75

Finding the Fourth Proportional to 38,315.80, 52,876.05 and 21,320.75

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Solution

The fourth proportional to 38,315.80, 52,876.05 and 21,320.75 is: 29,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,315.80 : 52,876.05 = 21,320.75 : x
  2. Step 2: Convert to fraction form
    38,315.80/52,876.05 = 21,320.75/x
  3. Step 3: Cross multiply
    38,315.80x = 52,876.05 × 21,320.75
  4. Step 4: Simplify right side
    38,315.80x = 1,127,357,095.27
  5. Step 5: Solve for x
    x = 1,127,357,095.27/38,315.80
  6. Step 6: Final answer
    x = 29,422.77

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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.