Home / 19,990.50-27,586.95-11,038.06

Finding the Fourth Proportional to 19,990.50, 27,586.95 and 11,038.06

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Solution

The fourth proportional to 19,990.50, 27,586.95 and 11,038.06 is: 15,232.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.50 : 27,586.95 = 11,038.06 : x
  2. Step 2: Convert to fraction form
    19,990.50/27,586.95 = 11,038.06/x
  3. Step 3: Cross multiply
    19,990.50x = 27,586.95 × 11,038.06
  4. Step 4: Simplify right side
    19,990.50x = 304,506,409.32
  5. Step 5: Solve for x
    x = 304,506,409.32/19,990.50
  6. Step 6: Final answer
    x = 15,232.56

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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.