Home / 39,986.79-59,886.90-31,610.58

Finding the Fourth Proportional to 39,986.79, 59,886.90 and 31,610.58

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Solution

The fourth proportional to 39,986.79, 59,886.90 and 31,610.58 is: 47,342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.79 : 59,886.90 = 31,610.58 : x
  2. Step 2: Convert to fraction form
    39,986.79/59,886.90 = 31,610.58/x
  3. Step 3: Cross multiply
    39,986.79x = 59,886.90 × 31,610.58
  4. Step 4: Simplify right side
    39,986.79x = 1,893,059,643.40
  5. Step 5: Solve for x
    x = 1,893,059,643.40/39,986.79
  6. Step 6: Final answer
    x = 47,342.13

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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.