Home / 14,574.95-20,064.78-13,905.43

Finding the Fourth Proportional to 14,574.95, 20,064.78 and 13,905.43

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Solution

The fourth proportional to 14,574.95, 20,064.78 and 13,905.43 is: 19,143.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574.95 : 20,064.78 = 13,905.43 : x
  2. Step 2: Convert to fraction form
    14,574.95/20,064.78 = 13,905.43/x
  3. Step 3: Cross multiply
    14,574.95x = 20,064.78 × 13,905.43
  4. Step 4: Simplify right side
    14,574.95x = 279,009,393.76
  5. Step 5: Solve for x
    x = 279,009,393.76/14,574.95
  6. Step 6: Final answer
    x = 19,143.08

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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.