Home / 35,319.61-48,719.51-20,969.72

Finding the Fourth Proportional to 35,319.61, 48,719.51 and 20,969.72

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Solution

The fourth proportional to 35,319.61, 48,719.51 and 20,969.72 is: 28,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,319.61 : 48,719.51 = 20,969.72 : x
  2. Step 2: Convert to fraction form
    35,319.61/48,719.51 = 20,969.72/x
  3. Step 3: Cross multiply
    35,319.61x = 48,719.51 × 20,969.72
  4. Step 4: Simplify right side
    35,319.61x = 1,021,634,396.13
  5. Step 5: Solve for x
    x = 1,021,634,396.13/35,319.61
  6. Step 6: Final answer
    x = 28,925.41

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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.