Home / 38,381.04-52,970.88-21,617.28

Finding the Fourth Proportional to 38,381.04, 52,970.88 and 21,617.28

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Solution

The fourth proportional to 38,381.04, 52,970.88 and 21,617.28 is: 29,834.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,381.04 : 52,970.88 = 21,617.28 : x
  2. Step 2: Convert to fraction form
    38,381.04/52,970.88 = 21,617.28/x
  3. Step 3: Cross multiply
    38,381.04x = 52,970.88 × 21,617.28
  4. Step 4: Simplify right side
    38,381.04x = 1,145,086,344.81
  5. Step 5: Solve for x
    x = 1,145,086,344.81/38,381.04
  6. Step 6: Final answer
    x = 29,834.69

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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.