Home / 39,689.34-59,533.83-11,987.34

Finding the Fourth Proportional to 39,689.34, 59,533.83 and 11,987.34

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Solution

The fourth proportional to 39,689.34, 59,533.83 and 11,987.34 is: 17,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,689.34 : 59,533.83 = 11,987.34 : x
  2. Step 2: Convert to fraction form
    39,689.34/59,533.83 = 11,987.34/x
  3. Step 3: Cross multiply
    39,689.34x = 59,533.83 × 11,987.34
  4. Step 4: Simplify right side
    39,689.34x = 713,652,261.71
  5. Step 5: Solve for x
    x = 713,652,261.71/39,689.34
  6. Step 6: Final answer
    x = 17,980.96

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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.