Home / 39,176.95-54,064.02-21,271.81

Finding the Fourth Proportional to 39,176.95, 54,064.02 and 21,271.81

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Solution

The fourth proportional to 39,176.95, 54,064.02 and 21,271.81 is: 29,355.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,176.95 : 54,064.02 = 21,271.81 : x
  2. Step 2: Convert to fraction form
    39,176.95/54,064.02 = 21,271.81/x
  3. Step 3: Cross multiply
    39,176.95x = 54,064.02 × 21,271.81
  4. Step 4: Simplify right side
    39,176.95x = 1,150,039,561.28
  5. Step 5: Solve for x
    x = 1,150,039,561.28/39,176.95
  6. Step 6: Final answer
    x = 29,355.00

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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.