Home / 27,762.51-38,312.58-15,015.95

Finding the Fourth Proportional to 27,762.51, 38,312.58 and 15,015.95

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Solution

The fourth proportional to 27,762.51, 38,312.58 and 15,015.95 is: 20,722.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,762.51 : 38,312.58 = 15,015.95 : x
  2. Step 2: Convert to fraction form
    27,762.51/38,312.58 = 15,015.95/x
  3. Step 3: Cross multiply
    27,762.51x = 38,312.58 × 15,015.95
  4. Step 4: Simplify right side
    27,762.51x = 575,299,785.65
  5. Step 5: Solve for x
    x = 575,299,785.65/27,762.51
  6. Step 6: Final answer
    x = 20,722.18

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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.