Home / 28,238.36-42,355.53-13,248.77

Finding the Fourth Proportional to 28,238.36, 42,355.53 and 13,248.77

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Solution

The fourth proportional to 28,238.36, 42,355.53 and 13,248.77 is: 19,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,238.36 : 42,355.53 = 13,248.77 : x
  2. Step 2: Convert to fraction form
    28,238.36/42,355.53 = 13,248.77/x
  3. Step 3: Cross multiply
    28,238.36x = 42,355.53 × 13,248.77
  4. Step 4: Simplify right side
    28,238.36x = 561,158,463.42
  5. Step 5: Solve for x
    x = 561,158,463.42/28,238.36
  6. Step 6: Final answer
    x = 19,872.21

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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.