Home / 39,725.40-59,636.70-21,970.20

Finding the Fourth Proportional to 39,725.40, 59,636.70 and 21,970.20

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Solution

The fourth proportional to 39,725.40, 59,636.70 and 21,970.20 is: 32,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,725.40 : 59,636.70 = 21,970.20 : x
  2. Step 2: Convert to fraction form
    39,725.40/59,636.70 = 21,970.20/x
  3. Step 3: Cross multiply
    39,725.40x = 59,636.70 × 21,970.20
  4. Step 4: Simplify right side
    39,725.40x = 1,310,230,226.34
  5. Step 5: Solve for x
    x = 1,310,230,226.34/39,725.40
  6. Step 6: Final answer
    x = 32,982.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.