Home / 38,315.04-52,870.11-21,315.27

Finding the Fourth Proportional to 38,315.04, 52,870.11 and 21,315.27

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Solution

The fourth proportional to 38,315.04, 52,870.11 and 21,315.27 is: 29,412.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,315.04 : 52,870.11 = 21,315.27 : x
  2. Step 2: Convert to fraction form
    38,315.04/52,870.11 = 21,315.27/x
  3. Step 3: Cross multiply
    38,315.04x = 52,870.11 × 21,315.27
  4. Step 4: Simplify right side
    38,315.04x = 1,126,940,669.58
  5. Step 5: Solve for x
    x = 1,126,940,669.58/38,315.04
  6. Step 6: Final answer
    x = 29,412.49

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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.