Home / 21,527-29,719.44-13,980.08

Finding the Fourth Proportional to 21,527, 29,719.44 and 13,980.08

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Solution

The fourth proportional to 21,527, 29,719.44 and 13,980.08 is: 19,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,527 : 29,719.44 = 13,980.08 : x
  2. Step 2: Convert to fraction form
    21,527/29,719.44 = 13,980.08/x
  3. Step 3: Cross multiply
    21,527x = 29,719.44 × 13,980.08
  4. Step 4: Simplify right side
    21,527x = 415,480,148.76
  5. Step 5: Solve for x
    x = 415,480,148.76/21,527
  6. Step 6: Final answer
    x = 19,300.42

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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.