Home / 25,643.28-35,387.63-14,312.80

Finding the Fourth Proportional to 25,643.28, 35,387.63 and 14,312.80

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Solution

The fourth proportional to 25,643.28, 35,387.63 and 14,312.80 is: 19,751.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,643.28 : 35,387.63 = 14,312.80 : x
  2. Step 2: Convert to fraction form
    25,643.28/35,387.63 = 14,312.80/x
  3. Step 3: Cross multiply
    25,643.28x = 35,387.63 × 14,312.80
  4. Step 4: Simplify right side
    25,643.28x = 506,496,177.52
  5. Step 5: Solve for x
    x = 506,496,177.52/25,643.28
  6. Step 6: Final answer
    x = 19,751.61

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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.