Home / 27,711.50-38,242.08-15,136.26

Finding the Fourth Proportional to 27,711.50, 38,242.08 and 15,136.26

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Solution

The fourth proportional to 27,711.50, 38,242.08 and 15,136.26 is: 20,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,711.50 : 38,242.08 = 15,136.26 : x
  2. Step 2: Convert to fraction form
    27,711.50/38,242.08 = 15,136.26/x
  3. Step 3: Cross multiply
    27,711.50x = 38,242.08 × 15,136.26
  4. Step 4: Simplify right side
    27,711.50x = 578,842,065.82
  5. Step 5: Solve for x
    x = 578,842,065.82/27,711.50
  6. Step 6: Final answer
    x = 20,888.15

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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.