Home / 28,887.37-39,864.64-16,140.59

Finding the Fourth Proportional to 28,887.37, 39,864.64 and 16,140.59

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Solution

The fourth proportional to 28,887.37, 39,864.64 and 16,140.59 is: 22,274.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,887.37 : 39,864.64 = 16,140.59 : x
  2. Step 2: Convert to fraction form
    28,887.37/39,864.64 = 16,140.59/x
  3. Step 3: Cross multiply
    28,887.37x = 39,864.64 × 16,140.59
  4. Step 4: Simplify right side
    28,887.37x = 643,438,809.74
  5. Step 5: Solve for x
    x = 643,438,809.74/28,887.37
  6. Step 6: Final answer
    x = 22,274.05

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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.