Home / 21,900.60-30,225.63-14,353.32

Finding the Fourth Proportional to 21,900.60, 30,225.63 and 14,353.32

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Solution

The fourth proportional to 21,900.60, 30,225.63 and 14,353.32 is: 19,809.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,900.60 : 30,225.63 = 14,353.32 : x
  2. Step 2: Convert to fraction form
    21,900.60/30,225.63 = 14,353.32/x
  3. Step 3: Cross multiply
    21,900.60x = 30,225.63 × 14,353.32
  4. Step 4: Simplify right side
    21,900.60x = 433,838,139.59
  5. Step 5: Solve for x
    x = 433,838,139.59/21,900.60
  6. Step 6: Final answer
    x = 19,809.42

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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.