Home / 27,219.95-40,834.70-12,430.36

Finding the Fourth Proportional to 27,219.95, 40,834.70 and 12,430.36

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Solution

The fourth proportional to 27,219.95, 40,834.70 and 12,430.36 is: 18,647.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,219.95 : 40,834.70 = 12,430.36 : x
  2. Step 2: Convert to fraction form
    27,219.95/40,834.70 = 12,430.36/x
  3. Step 3: Cross multiply
    27,219.95x = 40,834.70 × 12,430.36
  4. Step 4: Simplify right side
    27,219.95x = 507,590,021.49
  5. Step 5: Solve for x
    x = 507,590,021.49/27,219.95
  6. Step 6: Final answer
    x = 18,647.72

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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.