Home / 42,877.04-64,324.80-13,294.28

Finding the Fourth Proportional to 42,877.04, 64,324.80 and 13,294.28

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Solution

The fourth proportional to 42,877.04, 64,324.80 and 13,294.28 is: 19,944.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,877.04 : 64,324.80 = 13,294.28 : x
  2. Step 2: Convert to fraction form
    42,877.04/64,324.80 = 13,294.28/x
  3. Step 3: Cross multiply
    42,877.04x = 64,324.80 × 13,294.28
  4. Step 4: Simplify right side
    42,877.04x = 855,151,902.14
  5. Step 5: Solve for x
    x = 855,151,902.14/42,877.04
  6. Step 6: Final answer
    x = 19,944.28

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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.