Home / 21,060.36-29,075.12-14,609.40

Finding the Fourth Proportional to 21,060.36, 29,075.12 and 14,609.40

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Solution

The fourth proportional to 21,060.36, 29,075.12 and 14,609.40 is: 20,169.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.36 : 29,075.12 = 14,609.40 : x
  2. Step 2: Convert to fraction form
    21,060.36/29,075.12 = 14,609.40/x
  3. Step 3: Cross multiply
    21,060.36x = 29,075.12 × 14,609.40
  4. Step 4: Simplify right side
    21,060.36x = 424,769,985.08
  5. Step 5: Solve for x
    x = 424,769,985.08/21,060.36
  6. Step 6: Final answer
    x = 20,169.17

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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.