Home / 28,903.61-39,881.87-16,152.72

Finding the Fourth Proportional to 28,903.61, 39,881.87 and 16,152.72

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Solution

The fourth proportional to 28,903.61, 39,881.87 and 16,152.72 is: 22,287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.61 : 39,881.87 = 16,152.72 : x
  2. Step 2: Convert to fraction form
    28,903.61/39,881.87 = 16,152.72/x
  3. Step 3: Cross multiply
    28,903.61x = 39,881.87 × 16,152.72
  4. Step 4: Simplify right side
    28,903.61x = 644,200,509.44
  5. Step 5: Solve for x
    x = 644,200,509.44/28,903.61
  6. Step 6: Final answer
    x = 22,287.89

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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.