Home / 25,666.56-35,420.04-15,056.40

Finding the Fourth Proportional to 25,666.56, 35,420.04 and 15,056.40

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Solution

The fourth proportional to 25,666.56, 35,420.04 and 15,056.40 is: 20,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,666.56 : 35,420.04 = 15,056.40 : x
  2. Step 2: Convert to fraction form
    25,666.56/35,420.04 = 15,056.40/x
  3. Step 3: Cross multiply
    25,666.56x = 35,420.04 × 15,056.40
  4. Step 4: Simplify right side
    25,666.56x = 533,298,290.26
  5. Step 5: Solve for x
    x = 533,298,290.26/25,666.56
  6. Step 6: Final answer
    x = 20,777.94

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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.