Home / 19,981.23-27,584.08-12,430.01

Finding the Fourth Proportional to 19,981.23, 27,584.08 and 12,430.01

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Solution

The fourth proportional to 19,981.23, 27,584.08 and 12,430.01 is: 17,159.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981.23 : 27,584.08 = 12,430.01 : x
  2. Step 2: Convert to fraction form
    19,981.23/27,584.08 = 12,430.01/x
  3. Step 3: Cross multiply
    19,981.23x = 27,584.08 × 12,430.01
  4. Step 4: Simplify right side
    19,981.23x = 342,870,421.30
  5. Step 5: Solve for x
    x = 342,870,421.30/19,981.23
  6. Step 6: Final answer
    x = 17,159.63

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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.