Home / 28,463.49-39,279.56-15,888.24

Finding the Fourth Proportional to 28,463.49, 39,279.56 and 15,888.24

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Solution

The fourth proportional to 28,463.49, 39,279.56 and 15,888.24 is: 21,925.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,463.49 : 39,279.56 = 15,888.24 : x
  2. Step 2: Convert to fraction form
    28,463.49/39,279.56 = 15,888.24/x
  3. Step 3: Cross multiply
    28,463.49x = 39,279.56 × 15,888.24
  4. Step 4: Simplify right side
    28,463.49x = 624,082,996.93
  5. Step 5: Solve for x
    x = 624,082,996.93/28,463.49
  6. Step 6: Final answer
    x = 21,925.74

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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.