Home / 19,360.63-26,720.91-10,981.99

Finding the Fourth Proportional to 19,360.63, 26,720.91 and 10,981.99

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Solution

The fourth proportional to 19,360.63, 26,720.91 and 10,981.99 is: 15,156.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,360.63 : 26,720.91 = 10,981.99 : x
  2. Step 2: Convert to fraction form
    19,360.63/26,720.91 = 10,981.99/x
  3. Step 3: Cross multiply
    19,360.63x = 26,720.91 × 10,981.99
  4. Step 4: Simplify right side
    19,360.63x = 293,448,577.90
  5. Step 5: Solve for x
    x = 293,448,577.90/19,360.63
  6. Step 6: Final answer
    x = 15,156.98

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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.