Home / 35,742.95-49,327.53-20,638.40

Finding the Fourth Proportional to 35,742.95, 49,327.53 and 20,638.40

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Solution

The fourth proportional to 35,742.95, 49,327.53 and 20,638.40 is: 28,482.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,742.95 : 49,327.53 = 20,638.40 : x
  2. Step 2: Convert to fraction form
    35,742.95/49,327.53 = 20,638.40/x
  3. Step 3: Cross multiply
    35,742.95x = 49,327.53 × 20,638.40
  4. Step 4: Simplify right side
    35,742.95x = 1,018,041,295.15
  5. Step 5: Solve for x
    x = 1,018,041,295.15/35,742.95
  6. Step 6: Final answer
    x = 28,482.30

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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.