Home / 21,337.40-29,430.06-14,261.24

Finding the Fourth Proportional to 21,337.40, 29,430.06 and 14,261.24

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Solution

The fourth proportional to 21,337.40, 29,430.06 and 14,261.24 is: 19,670.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,337.40 : 29,430.06 = 14,261.24 : x
  2. Step 2: Convert to fraction form
    21,337.40/29,430.06 = 14,261.24/x
  3. Step 3: Cross multiply
    21,337.40x = 29,430.06 × 14,261.24
  4. Step 4: Simplify right side
    21,337.40x = 419,709,148.87
  5. Step 5: Solve for x
    x = 419,709,148.87/21,337.40
  6. Step 6: Final answer
    x = 19,670.12

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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.