Home / 39,690.07-59,535.10-11,988.07

Finding the Fourth Proportional to 39,690.07, 59,535.10 and 11,988.07

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Solution

The fourth proportional to 39,690.07, 59,535.10 and 11,988.07 is: 17,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,690.07 : 59,535.10 = 11,988.07 : x
  2. Step 2: Convert to fraction form
    39,690.07/59,535.10 = 11,988.07/x
  3. Step 3: Cross multiply
    39,690.07x = 59,535.10 × 11,988.07
  4. Step 4: Simplify right side
    39,690.07x = 713,710,588.64
  5. Step 5: Solve for x
    x = 713,710,588.64/39,690.07
  6. Step 6: Final answer
    x = 17,982.10

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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.