Home / 26,970.16-40,401.85-12,719.12

Finding the Fourth Proportional to 26,970.16, 40,401.85 and 12,719.12

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Solution

The fourth proportional to 26,970.16, 40,401.85 and 12,719.12 is: 19,053.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,970.16 : 40,401.85 = 12,719.12 : x
  2. Step 2: Convert to fraction form
    26,970.16/40,401.85 = 12,719.12/x
  3. Step 3: Cross multiply
    26,970.16x = 40,401.85 × 12,719.12
  4. Step 4: Simplify right side
    26,970.16x = 513,875,978.37
  5. Step 5: Solve for x
    x = 513,875,978.37/26,970.16
  6. Step 6: Final answer
    x = 19,053.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.