Home / 28,851.16-39,809.79-19,275.64

Finding the Fourth Proportional to 28,851.16, 39,809.79 and 19,275.64

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Solution

The fourth proportional to 28,851.16, 39,809.79 and 19,275.64 is: 26,597.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,851.16 : 39,809.79 = 19,275.64 : x
  2. Step 2: Convert to fraction form
    28,851.16/39,809.79 = 19,275.64/x
  3. Step 3: Cross multiply
    28,851.16x = 39,809.79 × 19,275.64
  4. Step 4: Simplify right side
    28,851.16x = 767,359,180.52
  5. Step 5: Solve for x
    x = 767,359,180.52/28,851.16
  6. Step 6: Final answer
    x = 26,597.17

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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.