Home / 51,022.06-70,421.86-28,369

Finding the Fourth Proportional to 51,022.06, 70,421.86 and 28,369

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Solution

The fourth proportional to 51,022.06, 70,421.86 and 28,369 is: 39,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,022.06 : 70,421.86 = 28,369 : x
  2. Step 2: Convert to fraction form
    51,022.06/70,421.86 = 28,369/x
  3. Step 3: Cross multiply
    51,022.06x = 70,421.86 × 28,369
  4. Step 4: Simplify right side
    51,022.06x = 1,997,797,746.34
  5. Step 5: Solve for x
    x = 1,997,797,746.34/51,022.06
  6. Step 6: Final answer
    x = 39,155.57

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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.