Home / 38,384.82-52,970.25-21,389.00

Finding the Fourth Proportional to 38,384.82, 52,970.25 and 21,389.00

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Solution

The fourth proportional to 38,384.82, 52,970.25 and 21,389.00 is: 29,516.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,384.82 : 52,970.25 = 21,389.00 : x
  2. Step 2: Convert to fraction form
    38,384.82/52,970.25 = 21,389.00/x
  3. Step 3: Cross multiply
    38,384.82x = 52,970.25 × 21,389.00
  4. Step 4: Simplify right side
    38,384.82x = 1,132,980,412.40
  5. Step 5: Solve for x
    x = 1,132,980,412.40/38,384.82
  6. Step 6: Final answer
    x = 29,516.37

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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.