Home / 27,438.56-37,870.72-15,502.08

Finding the Fourth Proportional to 27,438.56, 37,870.72 and 15,502.08

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Solution

The fourth proportional to 27,438.56, 37,870.72 and 15,502.08 is: 21,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,438.56 : 37,870.72 = 15,502.08 : x
  2. Step 2: Convert to fraction form
    27,438.56/37,870.72 = 15,502.08/x
  3. Step 3: Cross multiply
    27,438.56x = 37,870.72 × 15,502.08
  4. Step 4: Simplify right side
    27,438.56x = 587,074,931.10
  5. Step 5: Solve for x
    x = 587,074,931.10/27,438.56
  6. Step 6: Final answer
    x = 21,395.98

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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.