Home / 18,421.95-25,422.29-10,038.45

Finding the Fourth Proportional to 18,421.95, 25,422.29 and 10,038.45

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Solution

The fourth proportional to 18,421.95, 25,422.29 and 10,038.45 is: 13,853.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.95 : 25,422.29 = 10,038.45 : x
  2. Step 2: Convert to fraction form
    18,421.95/25,422.29 = 10,038.45/x
  3. Step 3: Cross multiply
    18,421.95x = 25,422.29 × 10,038.45
  4. Step 4: Simplify right side
    18,421.95x = 255,200,336.86
  5. Step 5: Solve for x
    x = 255,200,336.86/18,421.95
  6. Step 6: Final answer
    x = 13,853.06

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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.