Home / 39,178.13-58,717.91-28,106.51

Finding the Fourth Proportional to 39,178.13, 58,717.91 and 28,106.51

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Solution

The fourth proportional to 39,178.13, 58,717.91 and 28,106.51 is: 42,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,178.13 : 58,717.91 = 28,106.51 : x
  2. Step 2: Convert to fraction form
    39,178.13/58,717.91 = 28,106.51/x
  3. Step 3: Cross multiply
    39,178.13x = 58,717.91 × 28,106.51
  4. Step 4: Simplify right side
    39,178.13x = 1,650,355,301.27
  5. Step 5: Solve for x
    x = 1,650,355,301.27/39,178.13
  6. Step 6: Final answer
    x = 42,124.41

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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.