Home / 20,510.64-28,307.28-14,212.08

Finding the Fourth Proportional to 20,510.64, 28,307.28 and 14,212.08

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Solution

The fourth proportional to 20,510.64, 28,307.28 and 14,212.08 is: 19,614.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.64 : 28,307.28 = 14,212.08 : x
  2. Step 2: Convert to fraction form
    20,510.64/28,307.28 = 14,212.08/x
  3. Step 3: Cross multiply
    20,510.64x = 28,307.28 × 14,212.08
  4. Step 4: Simplify right side
    20,510.64x = 402,305,327.94
  5. Step 5: Solve for x
    x = 402,305,327.94/20,510.64
  6. Step 6: Final answer
    x = 19,614.47

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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.