Home / 28,376.91-39,159.59-19,424.18

Finding the Fourth Proportional to 28,376.91, 39,159.59 and 19,424.18

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Solution

The fourth proportional to 28,376.91, 39,159.59 and 19,424.18 is: 26,804.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,376.91 : 39,159.59 = 19,424.18 : x
  2. Step 2: Convert to fraction form
    28,376.91/39,159.59 = 19,424.18/x
  3. Step 3: Cross multiply
    28,376.91x = 39,159.59 × 19,424.18
  4. Step 4: Simplify right side
    28,376.91x = 760,642,925.66
  5. Step 5: Solve for x
    x = 760,642,925.66/28,376.91
  6. Step 6: Final answer
    x = 26,804.99

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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.