Home / 28,503.81-42,756.45-13,507.41

Finding the Fourth Proportional to 28,503.81, 42,756.45 and 13,507.41

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Solution

The fourth proportional to 28,503.81, 42,756.45 and 13,507.41 is: 20,261.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,503.81 : 42,756.45 = 13,507.41 : x
  2. Step 2: Convert to fraction form
    28,503.81/42,756.45 = 13,507.41/x
  3. Step 3: Cross multiply
    28,503.81x = 42,756.45 × 13,507.41
  4. Step 4: Simplify right side
    28,503.81x = 577,528,900.29
  5. Step 5: Solve for x
    x = 577,528,900.29/28,503.81
  6. Step 6: Final answer
    x = 20,261.46

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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.