Home / 25,707.65-35,477.03-15,636.51

Finding the Fourth Proportional to 25,707.65, 35,477.03 and 15,636.51

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Solution

The fourth proportional to 25,707.65, 35,477.03 and 15,636.51 is: 21,578.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,707.65 : 35,477.03 = 15,636.51 : x
  2. Step 2: Convert to fraction form
    25,707.65/35,477.03 = 15,636.51/x
  3. Step 3: Cross multiply
    25,707.65x = 35,477.03 × 15,636.51
  4. Step 4: Simplify right side
    25,707.65x = 554,736,973.46
  5. Step 5: Solve for x
    x = 554,736,973.46/25,707.65
  6. Step 6: Final answer
    x = 21,578.68

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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.