Home / 19,430.80-26,790.60-14,387.92

Finding the Fourth Proportional to 19,430.80, 26,790.60 and 14,387.92

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Solution

The fourth proportional to 19,430.80, 26,790.60 and 14,387.92 is: 19,837.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.80 : 26,790.60 = 14,387.92 : x
  2. Step 2: Convert to fraction form
    19,430.80/26,790.60 = 14,387.92/x
  3. Step 3: Cross multiply
    19,430.80x = 26,790.60 × 14,387.92
  4. Step 4: Simplify right side
    19,430.80x = 385,461,009.55
  5. Step 5: Solve for x
    x = 385,461,009.55/19,430.80
  6. Step 6: Final answer
    x = 19,837.63

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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.