Home / 21,095.58-29,117.67-13,133.13

Finding the Fourth Proportional to 21,095.58, 29,117.67 and 13,133.13

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Solution

The fourth proportional to 21,095.58, 29,117.67 and 13,133.13 is: 18,127.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.58 : 29,117.67 = 13,133.13 : x
  2. Step 2: Convert to fraction form
    21,095.58/29,117.67 = 13,133.13/x
  3. Step 3: Cross multiply
    21,095.58x = 29,117.67 × 13,133.13
  4. Step 4: Simplify right side
    21,095.58x = 382,406,145.41
  5. Step 5: Solve for x
    x = 382,406,145.41/21,095.58
  6. Step 6: Final answer
    x = 18,127.31

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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.