Home / 40,298.88-60,424.56-12,210.40

Finding the Fourth Proportional to 40,298.88, 60,424.56 and 12,210.40

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Solution

The fourth proportional to 40,298.88, 60,424.56 and 12,210.40 is: 18,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,298.88 : 60,424.56 = 12,210.40 : x
  2. Step 2: Convert to fraction form
    40,298.88/60,424.56 = 12,210.40/x
  3. Step 3: Cross multiply
    40,298.88x = 60,424.56 × 12,210.40
  4. Step 4: Simplify right side
    40,298.88x = 737,808,047.42
  5. Step 5: Solve for x
    x = 737,808,047.42/40,298.88
  6. Step 6: Final answer
    x = 18,308.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.