Home / 25,685.20-35,445.47-14,354.69

Finding the Fourth Proportional to 25,685.20, 35,445.47 and 14,354.69

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Solution

The fourth proportional to 25,685.20, 35,445.47 and 14,354.69 is: 19,809.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,685.20 : 35,445.47 = 14,354.69 : x
  2. Step 2: Convert to fraction form
    25,685.20/35,445.47 = 14,354.69/x
  3. Step 3: Cross multiply
    25,685.20x = 35,445.47 × 14,354.69
  4. Step 4: Simplify right side
    25,685.20x = 508,808,859.52
  5. Step 5: Solve for x
    x = 508,808,859.52/25,685.20
  6. Step 6: Final answer
    x = 19,809.41

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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.