Home / 28,606.89-42,903.50-9,887.58

Finding the Fourth Proportional to 28,606.89, 42,903.50 and 9,887.58

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Solution

The fourth proportional to 28,606.89, 42,903.50 and 9,887.58 is: 14,829.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606.89 : 42,903.50 = 9,887.58 : x
  2. Step 2: Convert to fraction form
    28,606.89/42,903.50 = 9,887.58/x
  3. Step 3: Cross multiply
    28,606.89x = 42,903.50 × 9,887.58
  4. Step 4: Simplify right side
    28,606.89x = 424,211,739.09
  5. Step 5: Solve for x
    x = 424,211,739.09/28,606.89
  6. Step 6: Final answer
    x = 14,829.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.