Home / 21,526.24-29,708.70-12,575.98

Finding the Fourth Proportional to 21,526.24, 29,708.70 and 12,575.98

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Solution

The fourth proportional to 21,526.24, 29,708.70 and 12,575.98 is: 17,356.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,526.24 : 29,708.70 = 12,575.98 : x
  2. Step 2: Convert to fraction form
    21,526.24/29,708.70 = 12,575.98/x
  3. Step 3: Cross multiply
    21,526.24x = 29,708.70 × 12,575.98
  4. Step 4: Simplify right side
    21,526.24x = 373,616,017.03
  5. Step 5: Solve for x
    x = 373,616,017.03/21,526.24
  6. Step 6: Final answer
    x = 17,356.31

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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.