Home / 38,355.04-52,928.87-21,359.28

Finding the Fourth Proportional to 38,355.04, 52,928.87 and 21,359.28

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Solution

The fourth proportional to 38,355.04, 52,928.87 and 21,359.28 is: 29,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,355.04 : 52,928.87 = 21,359.28 : x
  2. Step 2: Convert to fraction form
    38,355.04/52,928.87 = 21,359.28/x
  3. Step 3: Cross multiply
    38,355.04x = 52,928.87 × 21,359.28
  4. Step 4: Simplify right side
    38,355.04x = 1,130,522,554.41
  5. Step 5: Solve for x
    x = 1,130,522,554.41/38,355.04
  6. Step 6: Final answer
    x = 29,475.20

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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.