Home / 28,289.81-39,035.59-16,350.84

Finding the Fourth Proportional to 28,289.81, 39,035.59 and 16,350.84

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Solution

The fourth proportional to 28,289.81, 39,035.59 and 16,350.84 is: 22,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.81 : 39,035.59 = 16,350.84 : x
  2. Step 2: Convert to fraction form
    28,289.81/39,035.59 = 16,350.84/x
  3. Step 3: Cross multiply
    28,289.81x = 39,035.59 × 16,350.84
  4. Step 4: Simplify right side
    28,289.81x = 638,264,686.40
  5. Step 5: Solve for x
    x = 638,264,686.40/28,289.81
  6. Step 6: Final answer
    x = 22,561.65

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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.