Home / 28,637.23-42,945.54-9,912.18

Finding the Fourth Proportional to 28,637.23, 42,945.54 and 9,912.18

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Solution

The fourth proportional to 28,637.23, 42,945.54 and 9,912.18 is: 14,864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,637.23 : 42,945.54 = 9,912.18 : x
  2. Step 2: Convert to fraction form
    28,637.23/42,945.54 = 9,912.18/x
  3. Step 3: Cross multiply
    28,637.23x = 42,945.54 × 9,912.18
  4. Step 4: Simplify right side
    28,637.23x = 425,683,922.68
  5. Step 5: Solve for x
    x = 425,683,922.68/28,637.23
  6. Step 6: Final answer
    x = 14,864.70

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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.