Home / 42,877.16-64,315.77-17,903.60

Finding the Fourth Proportional to 42,877.16, 64,315.77 and 17,903.60

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Solution

The fourth proportional to 42,877.16, 64,315.77 and 17,903.60 is: 26,855.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,877.16 : 64,315.77 = 17,903.60 : x
  2. Step 2: Convert to fraction form
    42,877.16/64,315.77 = 17,903.60/x
  3. Step 3: Cross multiply
    42,877.16x = 64,315.77 × 17,903.60
  4. Step 4: Simplify right side
    42,877.16x = 1,151,483,772.95
  5. Step 5: Solve for x
    x = 1,151,483,772.95/42,877.16
  6. Step 6: Final answer
    x = 26,855.41

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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.