Home / 28,001.80-38,643.18-17,242.60

Finding the Fourth Proportional to 28,001.80, 38,643.18 and 17,242.60

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Solution

The fourth proportional to 28,001.80, 38,643.18 and 17,242.60 is: 23,795.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.80 : 38,643.18 = 17,242.60 : x
  2. Step 2: Convert to fraction form
    28,001.80/38,643.18 = 17,242.60/x
  3. Step 3: Cross multiply
    28,001.80x = 38,643.18 × 17,242.60
  4. Step 4: Simplify right side
    28,001.80x = 666,308,895.47
  5. Step 5: Solve for x
    x = 666,308,895.47/28,001.80
  6. Step 6: Final answer
    x = 23,795.22

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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.