Home / 39,280.13-54,206.12-21,374.83

Finding the Fourth Proportional to 39,280.13, 54,206.12 and 21,374.83

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Solution

The fourth proportional to 39,280.13, 54,206.12 and 21,374.83 is: 29,497.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280.13 : 54,206.12 = 21,374.83 : x
  2. Step 2: Convert to fraction form
    39,280.13/54,206.12 = 21,374.83/x
  3. Step 3: Cross multiply
    39,280.13x = 54,206.12 × 21,374.83
  4. Step 4: Simplify right side
    39,280.13x = 1,158,646,328.93
  5. Step 5: Solve for x
    x = 1,158,646,328.93/39,280.13
  6. Step 6: Final answer
    x = 29,497.01

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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.