Home / 22,690.02-31,307.63-13,256.76

Finding the Fourth Proportional to 22,690.02, 31,307.63 and 13,256.76

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Solution

The fourth proportional to 22,690.02, 31,307.63 and 13,256.76 is: 18,291.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,690.02 : 31,307.63 = 13,256.76 : x
  2. Step 2: Convert to fraction form
    22,690.02/31,307.63 = 13,256.76/x
  3. Step 3: Cross multiply
    22,690.02x = 31,307.63 × 13,256.76
  4. Step 4: Simplify right side
    22,690.02x = 415,037,737.08
  5. Step 5: Solve for x
    x = 415,037,737.08/22,690.02
  6. Step 6: Final answer
    x = 18,291.64

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Half scale
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Double scale
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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.