Home / 28,888.04-39,851.69-18,127.55

Finding the Fourth Proportional to 28,888.04, 39,851.69 and 18,127.55

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Solution

The fourth proportional to 28,888.04, 39,851.69 and 18,127.55 is: 25,007.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.04 : 39,851.69 = 18,127.55 : x
  2. Step 2: Convert to fraction form
    28,888.04/39,851.69 = 18,127.55/x
  3. Step 3: Cross multiply
    28,888.04x = 39,851.69 × 18,127.55
  4. Step 4: Simplify right side
    28,888.04x = 722,413,213.16
  5. Step 5: Solve for x
    x = 722,413,213.16/28,888.04
  6. Step 6: Final answer
    x = 25,007.35

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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.