Home / 15,720.11-23,580.23-14,931.77

Finding the Fourth Proportional to 15,720.11, 23,580.23 and 14,931.77

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Solution

The fourth proportional to 15,720.11, 23,580.23 and 14,931.77 is: 22,397.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,720.11 : 23,580.23 = 14,931.77 : x
  2. Step 2: Convert to fraction form
    15,720.11/23,580.23 = 14,931.77/x
  3. Step 3: Cross multiply
    15,720.11x = 23,580.23 × 14,931.77
  4. Step 4: Simplify right side
    15,720.11x = 352,094,570.91
  5. Step 5: Solve for x
    x = 352,094,570.91/15,720.11
  6. Step 6: Final answer
    x = 22,397.72

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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.