Home / 39,394.16-59,090.16-12,740.08

Finding the Fourth Proportional to 39,394.16, 59,090.16 and 12,740.08

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Solution

The fourth proportional to 39,394.16, 59,090.16 and 12,740.08 is: 19,109.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,394.16 : 59,090.16 = 12,740.08 : x
  2. Step 2: Convert to fraction form
    39,394.16/59,090.16 = 12,740.08/x
  3. Step 3: Cross multiply
    39,394.16x = 59,090.16 × 12,740.08
  4. Step 4: Simplify right side
    39,394.16x = 752,813,365.61
  5. Step 5: Solve for x
    x = 752,813,365.61/39,394.16
  6. Step 6: Final answer
    x = 19,109.77

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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.