Home / 39,899.20-59,810.40-31,009.60

Finding the Fourth Proportional to 39,899.20, 59,810.40 and 31,009.60

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Solution

The fourth proportional to 39,899.20, 59,810.40 and 31,009.60 is: 46,484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,899.20 : 59,810.40 = 31,009.60 : x
  2. Step 2: Convert to fraction form
    39,899.20/59,810.40 = 31,009.60/x
  3. Step 3: Cross multiply
    39,899.20x = 59,810.40 × 31,009.60
  4. Step 4: Simplify right side
    39,899.20x = 1,854,696,579.84
  5. Step 5: Solve for x
    x = 1,854,696,579.84/39,899.20
  6. Step 6: Final answer
    x = 46,484.56

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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.