Home / 38,219.04-52,742-21,223.20

Finding the Fourth Proportional to 38,219.04, 52,742 and 21,223.20

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Solution

The fourth proportional to 38,219.04, 52,742 and 21,223.20 is: 29,287.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,219.04 : 52,742 = 21,223.20 : x
  2. Step 2: Convert to fraction form
    38,219.04/52,742 = 21,223.20/x
  3. Step 3: Cross multiply
    38,219.04x = 52,742 × 21,223.20
  4. Step 4: Simplify right side
    38,219.04x = 1,119,354,014.40
  5. Step 5: Solve for x
    x = 1,119,354,014.40/38,219.04
  6. Step 6: Final answer
    x = 29,287.86

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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.