Home / 19,985.63-27,580.16-11,602.13

Finding the Fourth Proportional to 19,985.63, 27,580.16 and 11,602.13

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Solution

The fourth proportional to 19,985.63, 27,580.16 and 11,602.13 is: 16,010.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.63 : 27,580.16 = 11,602.13 : x
  2. Step 2: Convert to fraction form
    19,985.63/27,580.16 = 11,602.13/x
  3. Step 3: Cross multiply
    19,985.63x = 27,580.16 × 11,602.13
  4. Step 4: Simplify right side
    19,985.63x = 319,988,492.85
  5. Step 5: Solve for x
    x = 319,988,492.85/19,985.63
  6. Step 6: Final answer
    x = 16,010.93

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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.