Home / 39,417.22-54,395.72-28,106.40

Finding the Fourth Proportional to 39,417.22, 54,395.72 and 28,106.40

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Solution

The fourth proportional to 39,417.22, 54,395.72 and 28,106.40 is: 38,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,417.22 : 54,395.72 = 28,106.40 : x
  2. Step 2: Convert to fraction form
    39,417.22/54,395.72 = 28,106.40/x
  3. Step 3: Cross multiply
    39,417.22x = 54,395.72 × 28,106.40
  4. Step 4: Simplify right side
    39,417.22x = 1,528,867,864.61
  5. Step 5: Solve for x
    x = 1,528,867,864.61/39,417.22
  6. Step 6: Final answer
    x = 38,786.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.