Home / 28,312.96-42,444.24-14,254.72

Finding the Fourth Proportional to 28,312.96, 42,444.24 and 14,254.72

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Solution

The fourth proportional to 28,312.96, 42,444.24 and 14,254.72 is: 21,369.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.96 : 42,444.24 = 14,254.72 : x
  2. Step 2: Convert to fraction form
    28,312.96/42,444.24 = 14,254.72/x
  3. Step 3: Cross multiply
    28,312.96x = 42,444.24 × 14,254.72
  4. Step 4: Simplify right side
    28,312.96x = 605,030,756.81
  5. Step 5: Solve for x
    x = 605,030,756.81/28,312.96
  6. Step 6: Final answer
    x = 21,369.39

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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.