Home / 35,681.90-53,522.98-11,988.78

Finding the Fourth Proportional to 35,681.90, 53,522.98 and 11,988.78

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Solution

The fourth proportional to 35,681.90, 53,522.98 and 11,988.78 is: 17,983.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,681.90 : 53,522.98 = 11,988.78 : x
  2. Step 2: Convert to fraction form
    35,681.90/53,522.98 = 11,988.78/x
  3. Step 3: Cross multiply
    35,681.90x = 53,522.98 × 11,988.78
  4. Step 4: Simplify right side
    35,681.90x = 641,675,232.16
  5. Step 5: Solve for x
    x = 641,675,232.16/35,681.90
  6. Step 6: Final answer
    x = 17,983.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.