Home / 39,987.58-60,017.64-21,283.36

Finding the Fourth Proportional to 39,987.58, 60,017.64 and 21,283.36

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Solution

The fourth proportional to 39,987.58, 60,017.64 and 21,283.36 is: 31,944.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,987.58 : 60,017.64 = 21,283.36 : x
  2. Step 2: Convert to fraction form
    39,987.58/60,017.64 = 21,283.36/x
  3. Step 3: Cross multiply
    39,987.58x = 60,017.64 × 21,283.36
  4. Step 4: Simplify right side
    39,987.58x = 1,277,377,038.47
  5. Step 5: Solve for x
    x = 1,277,377,038.47/39,987.58
  6. Step 6: Final answer
    x = 31,944.34

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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.