Home / 25,478.47-35,159.63-14,147.60

Finding the Fourth Proportional to 25,478.47, 35,159.63 and 14,147.60

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Solution

The fourth proportional to 25,478.47, 35,159.63 and 14,147.60 is: 19,523.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,478.47 : 35,159.63 = 14,147.60 : x
  2. Step 2: Convert to fraction form
    25,478.47/35,159.63 = 14,147.60/x
  3. Step 3: Cross multiply
    25,478.47x = 35,159.63 × 14,147.60
  4. Step 4: Simplify right side
    25,478.47x = 497,424,398.55
  5. Step 5: Solve for x
    x = 497,424,398.55/25,478.47
  6. Step 6: Final answer
    x = 19,523.32

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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.